Sakura of America Products - Micron Pen, Waterproof/Fade Resistant, 0.50mm Point, Green - Sold as 1 EA - Pigma Micron Pen is ideal for graphic art, scrapbooks, archival recording, illustrations, freehand art, rubber stamps, cartooning and fabric design on 100 percent cotton fabric for best results. The formulation of pigment-based ink is more complex and stable than dye-based inks. Archival-quality ink is permanent, fade-resistant, waterproof and chemicalproof. Will not smear or feather when dry sakura