Dr. Ph. Martin's radiant concentrated water color is produced in an extremely concentrated form to achieve the greatest possible brilliance. Each liquid color comes in an iconic 0.5 oz (15 ml) glass bottle package with its own eyedropper. Dr. Ph. Martin's colors are primarily formulated for use in graphic arts work on paper surfaces intended for reproduction (e.g. cartooning, illustration, and other graphic arts), and are especially popular for airbrushing. Like all aniline dye base colors, they are fugitive when exposed to direct sunlight over time. For lightfast, archival watercolor use Dr. Ph. Martin's Hydrus fine art watercolor. Each set includes 14 different colors with a custom palette. 56 colors are available. Set D colors: 43D sunshine yellow, 44D sunset orange, 45D sunset red, 46D sunrise pink, 47D Tahiti red, 48D fuchsia, 49D raspberry, 50D ice green, 51D ice blue, 52D peacock blue, 53D iris blue, 54D Indian yellow, 55D tiger yellow, 56D coffee brown.