Sakura 30062 6-Piece Pigma Micron Ink Pen Set, Black. Applicable for graphic art, scrapbook, archival recording, pen and ink illustrations, freehand art, rubber stamps, cartooning and fabric design. Technical qualities are archival quality pigma ink, six point sizes, no smear or feather when dry, waterproof and chemical proof, fade resistant, does not bleed through most papers, meets astm and acmi nontoxicity standard and not evaluated for cosmetic use on skin. Set contains 6 different pieces having nib sizes for precise line width are 0.20mm, 0.25mm, 0.30mm, 0.35mm, 0.45mm and 0.50mm respectively. Available in 6piece per pack and black color.