This color gives ultimate transparency, ideal for use in airbrushes and designed specifically for work that requires more transparency such as retouching, hand coloring for photographic papers and films. This watercolor is preferred for photographic surfaces and flat washes on illustration board, paper or layout tissue. Dilute with water for an even higher level of transparency. Details:Available in multiple colors0.5 fl. oz. (15 mL)Glass dropper top bottleFor use with brush, technical pen and airbrushNon-clogging & non-toxicAniline dye-based colors (fugitive when exposed to direct sunlight over time)