Dr. Ph. Martins 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. Martins 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. Martins Hydrus Fine Art Watercolor. Each set includes 14 different colors with a custom palette. 56 colors are available. Set A Colors: 1A Lemon Yellow, 2A Orange, 3A Persimmon, 4A Alpine Rose, 5A Scarlet, 6A Cherry red, 7A Moss Rose, 8A Turquoise Blue, 9A True Blue, 10A Violet, 11A Grass Green, 12A Juniper Green, 13A Saddle Brown, 14A Black.