Pigma Micron Fineliner Pens feature archival-quality, waterproof, and fade-resistant ink for acid-free environments. These black pens don t smear, feather, or bleed through most papers and are certified non-toxic with the trusted Ap Seal. Perfect for graphic art, scrapbooking, archival recording, illustrations, stamps, and cartooning. Handle smaller nibs gently to avoid bending. Available in seven sizes for precise, lasting lines trusted by professionals and artists.