Size: W 7.1 x H 7.0 inches (180 x 178 mm); Comes in a plastic bag; Rotating, screw-stopping; Surface is vinyl coated; Instructions (English language not guaranteed); Supervision = Japanese Color Research Institute; Turn the disc to create the color you want to create and see the ratio of paint for mixed colors at a glance. The color swatch is a total of 84 colors with 7 tones, 12 colorized hues in accordance with the PCCS (Japan Color Polishing System). The displayed colors are compatible with 9 commercially available watercolor colors.