These brilliant, pigmented India inks are lightfast, waterproof, non-clogging and non-toxic. They are available in 1 oz. dropper bottles. These India inks can be used for cartooning, designing, rubberstamping, lettering, calligraphy, fountain pens, background washes, watercolor painting and more. The ink adheres to most surfaces including paper, wood, plastic, vinyl, board and metal.