Dual-tip markers are pigment ink, acid-free, archival quality, lightfast, waterproof, fadeproof and non-bleeding. Perfect for scrapbooking, cardmaking and paper crafts Dual-tipped: .5 mm and 1.2mm
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I was looking for an archival pen to sign my photographs this pen is perfect! Doesn't smudge, not to metallic...very much looks like you signed using a pencil but works on photo paper!