Pigmented India ink that is both acid-free and archival (PH neutral) Smudgeproof and waterproof when dry. Our ink contains the highest quality pigments for unsurpassed lightfastness. Lightfastness rating and color name noted on the barrel of each pen. Artist brush pens are ideal for graphic artists, illustrators, designers, and architects. Perfect for sketching, journals, cartooning, fine-ink drawing, scrapbooking, and rubber-stamping. ON SALE $4.99 FOR THE JUMBO AND $3.49 FOR THE SMALL – AVAILABLE IN STORE ONLY.