Color Wheel 245557 3505 Gray Scale and Value Finder, Black/White
Easy to use and understand, this 4" x 6" tool is perfect for determining color value in all my diameters. Its unique cutout shapes allow easy viewing and ensure accurate readings. Can be used to determine the values of black to white as well as colors. Includes simple explanations and instructions on mixing colors to darken or lighten them. An invaluable tool for artists, teachers, and students.