KOH-I-NOOR Pigment-Based Universal Drawing Ink, 0.75 Ounce Bottle, Black (3080F.BLA) Professional, transparent pigment-based ink; 0.75 ounce bottle Extremely versatile, fast drying ink Waterproof ink can be used in fine art, craft, calligraphy or airbrush applications For use on paper, vellum, drafting film and tracing paper Ink is erasable on drafting film