Pigma Micron pens offer waterproof, quick-drying pigment ink in a fine point writing instrument. The permanent, fade-resistant ink won’t bleed or run if liquids are spilled or applied to the surface. When dry, the ink becomes fade-resistant and smudge-proof on porous surfaces. Linework will not smear or feather, even on 100% cotton fabrics. Cartoonists, illustrators, and watercolorists enjoy the range of point sizes to create precise lines and details. Crafters and scrapbookers rely on Pigma ink for its archival quality for preserving memories. Use this archival pen for graphics, journaling, scrapbooks, memos, illustration, drafting, legal documents, accounting, and any project that requires lasting results. The ink is pH neutral, chemical resistant, and ideal for acid-free environments