This pen set feature micro pigment ink that is both waterproof and fade proofSet contains: 2 Micron 01, 1 Micron 05.It is acid FreeIt is of archival QualityConforms to ASTM D-4236
Learn the Zentangle methods of creating beautiful images from repetitive patterns! people who use this fascinating new art form say it is fun, relaxing, and provides artistic satisfaction and an increased sense of well-being. Pigment ink.
Brand: Sakura, Model: 50012, Color: Black, Size: 3-Piece