Formulated from exceptionally brilliant dye dissolved in a superior shellac solution, these inks from Winsor & Newton are water-resistant when dry, ideal for layering, illustration, lettering and more. They are for use with brush, pen or airbrush. Set includes: apple green, cobalt, crimson, and canary yellow. Details: Includes assorted colors 0.5 oz. jars (14 mL) each 4 drawing inks Fast-drying ink Transparent drawing ink Intermixable ink Dye-based ink Water resistant when dry Nontoxic Conforms to ASTM D-4236