Eqogo Logo

Permanent Markers

101 Products

Each time you see a score on Eqogo, remember that it is relative to its product category. What does this mean?

Select 2 to 5 items to compare in detail.
99
in Permanent Markers & Marker Pens

Shuttle Art Black Permanent Markers, Ultra Fine Point - Set of 30

Shuttle Art Pack of 30 premium black ultra fine point permanent markers, mark on paper, glass,ceramic,plastic, wood, rock, metal and almost all surfaces.

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that toys meet the safety standards set by the European Norm (EN 71), covering mechanical and physical properties, flammability and chemical composition.

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Flying Tiger Markers

Markers with thick and thin tips. 10 pcs. Flying Tiger Copenhagen

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT marks conformity with European Union (EU) health, safety, and environmental protection standards. The CE (Conformité Européenne) Marking is required for many products to be sold within the European Economic Area (EEA), ensuring they meet EU regulatory requirements.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Shuttle Art Colored Permanent Markers, Ultra Fine Point - Set of 30

Shuttle Art Pack of 30 colors premium ultra fine point permanent markers, mark on paper, glass,ceramic,plastic, wood, rock, metal and almost all surfaces.

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.

This CERT verifies that toys meet the safety standards set by the European Norm (EN 71), covering mechanical and physical properties, flammability and chemical composition.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Flying Tiger Markers with stamp

Stamp markers with different motifs. 6 pcs. Flying Tiger Copenhagen

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT marks conformity with European Union (EU) health, safety, and environmental protection standards. The CE (Conformité Européenne) Marking is required for many products to be sold within the European Economic Area (EEA), ensuring they meet EU regulatory requirements.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Flying Tiger Markers

Markers in plastic pouch. 12 pcs., each measuring 10 cm in length. Flying Tiger Copenhagen

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT marks conformity with European Union (EU) health, safety, and environmental protection standards. The CE (Conformité Européenne) Marking is required for many products to be sold within the European Economic Area (EEA), ensuring they meet EU regulatory requirements.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Shuttle Art Black Permanent Markers - Set of 24

Shuttle Art permanent marker set has 24 markers,all with black ink.

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.

This CERT verifies that toys meet the safety standards set by the European Norm (EN 71), covering mechanical and physical properties, flammability and chemical composition.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Shuttle Art Colored Permanent Markers, Fine Point - Set of 24

Shuttle Art permanent marker set has 24 bright and vivid colors.Versatile Fine Tip and Rich Colors can create eye-popping,vibrant impression.

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.

This CERT verifies that toys meet the safety standards set by the European Norm (EN 71), covering mechanical and physical properties, flammability and chemical composition.
Warranty: 20 - 34 Day
99
in Permanent Markers & Marker Pens

Flying Tiger Felt tip pens

Fine tip markers. Water-based. 10 pcs. Flying Tiger Copenhagen

Scored Product Attributes

99
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT marks conformity with European Union (EU) health, safety, and environmental protection standards. The CE (Conformité Européenne) Marking is required for many products to be sold within the European Economic Area (EEA), ensuring they meet EU regulatory requirements.
Warranty: 20 - 34 Day
53
in Permanent Markers & Marker Pens

Pentel Sign Pen®, 12 Pack

Celebrating 50 years of Sign Pen - The Original Fiber Tipped Pen! Set of 12 Sign Pens in assorted ink colors Radiant, water-based ink produces expressive, bold lines Snap-fit cap prevents the firm, durable tip from drying out when not in use Ideal for artists or anyone who enjoys writing and drawing Perfect for general

Scored Product Attributes

53
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Recycled Plastic

Water Based Ink

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day
41
in Permanent Markers & Marker Pens

Zebra Pen PM-701 Permanent Marker

Do you need a permanent marker thats as tough as you? Zebras PM-701 means business. With a durable, stainless steel barrel, and a cap off time of 120 hours*, Zebras PM-701 will keep you going no matter how big or small the task is at hand. Fine, Bullet Point Stainless Steel Barrel Extra Long Cap Off Time Refillable

Scored Product Attributes

41
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Stainless Steel

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime
41
in Permanent Markers & Marker Pens

Zebra Pen Stainless Steel & Metal Fine Point Permanent Marker | PM 701 Zebra Pen

Featuring a stainless steel metal barrel, this refillable fine bullet point permanent marker is able to write even after leaving the cap off up to 5 days.

Scored Product Attributes

41
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Stainless Steel

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime
41
in Permanent Markers & Marker Pens

Zebra Pen CLiCKART Retractable Marker Pen

Never worry about ink drying out with the Zebra CLiCKART marker pen. The Zebra CLiCKART features a capless design and new ink technology that absorbs the moisture in the air, which keeps the ink from drying out.

Scored Product Attributes

41
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Materials

Water Based Ink

icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications
Warranty: Limited Lifetime
38
in Permanent Markers & Marker Pens

Avery Carter's Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Red Marker (27177) | Avery.com

Make your mark with rich color

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Yellow Marker (08882) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Pen-Style Size, Bullet Tip, 3 Black Markers (29837) | Avery.com

Write on almost any surface with bold ink using with pen-style Marks-A-Lot markers.

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers Assorted Colors, 24 Large Desk-Style and 3 Pen Style (24426) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Regular Desk-Style Size, Chisel Tip, 1 Black Marker (07888) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Regular Desk-Style Size, Chisel Tip, 1 Red Marker (07887) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Regular Desk-Style Size, Chisel Tip, 2 Black Markers (07888) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Large Desk-Style Size, Chisel Tip, 12 Assorted Markers (24800) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style, Bullet Tip, 1 Black Marker (24878) | Avery.com

Write with a bold and steady stroke

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Black Marker (08888) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Ultra Fine Tip, 3 Black Markers (09230) | Avery.com

Precision and bold writing capabilities are yours with this set of 3 Avery Marks-A-Lot Ultra Fine Permanent Markers. These fine-tip markers produce a rich, eye-catching black upon contact and write on virtually any surface, including paper, metal, glass, plastic, and more.

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Large Desk-Style Size, Chisel Tip, 12 Black Markers (98028) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Purple Marker (08884) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Red Marker (08887) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Jumbo Desk-Style Size, Chisel Tip, 1 Black Marker (24148) | Avery.com

Create signs, posters, banners and more with high visibility

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Regular Desk-Style Size, Chisel Tip, 1 Green Marker (07885) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Blue Marker (08886) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Jumbo Desk-Style Size, Chisel Tip, 1 Black Marker (24138) | Avery.com

Create signs, posters, banners and more with high visibility

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Brown Marker (08881) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Green Marker (08885) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Jumbo Desk-Style Size, Chisel Tip, 1 Red Marker (24147) | Avery.com

Create signs, posters, banners and more with high visibility

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Orange Marker (08883) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Regular Desk-Style Size, Chisel Tip, 1 Red Marker (17887) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Regular Desk-Style Size, Chisel Tip, 4 Assorted Markers (07905) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Carter's Permanent Marker, Large Desk-Style Size, Chisel Tip, 1 Black Marker (27178) | Avery.com

Make your mark with rich color

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Marker, Regular Desk-Style Size, Chisel Tip, 1 Blue Marker (07886) | Avery.com

Write effectively on most surfaces

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot® Large Desk-Style Permanent Marker, Chisel Tip, Black (18888) | Avery.com

Enjoy long-lasting ink with a long-lasting marker

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
38
in Permanent Markers & Marker Pens

Avery Marks-A-Lot Permanent Markers, Ultra Fine Tip, 8 Assorted Markers (09231) | Avery.com

This bright and brilliant set of Avery Marks-A-Lot ultra fine assorted markers are a great addition to any artist's marker collection. Write confident and razor sharp lines with these .5 mm markers. The sturdy yet thin ultra fine marker tip stays firm and does not fray over time.

Scored Product Attributes

38
icon representing Social criteria factor icon representing Enviro criteria factor icon representing Quality criteria factor Certifications

This CERT verifies that art materials have been evaluated for chronic health hazards and comply with labeling standards set by ASTM International.
Warranty: 20 - 34 Day

Good To Know - Brand Attributes

icon representing Social criteria factor Social

Company participates in community outreach or activism programs.
Your Selections

Select 2 to 5 items to compare