Eye Chalk Special Color Perception Mini Set (Set of 6)

The Eye Chalk Special Color Perception Chalk Series was conceived with the understanding that color perception varies from person to person. Some individuals find it challenging to distinguish between certain color combinations (e.g., red-green color blindness). To ensure that all students in a classroom can easily read chalk writing in various colors, we collaborated with Professor Kei Ito of the University of Tokyo to develop special chalks that are distinguishable by people with diverse color perceptions. Eye Chalk doesn't make "red" invisible; instead, it prioritizes a balance of "multiple colors." By adjusting the brightness and saturation of the colors, it creates a color perception system with four quadrants: "Bright + Vivid," "Bright + Muted," "Dark + Vivid," and "Dark + Muted." This variation in brightness and saturation makes the colors easier to differentiate. https://live.staticflickr.com/65535/51509580887_8be256196f_b.jpg **〔 Product Specifications 〕** Contents: 1 set of 6 sticks (1 each of crimson, yellow, green, indigo, and 2 white) Chalk Dimensions: 63 x φ11 mm Packaging Dimensions: 165 x 70 x 75 mm Colors: Crimson, Yellow, Green, Indigo, White Materials: Chalk / Calcium Carbonate (includes scallop shell powder) Origin: Japan https://live.staticflickr.com/65535/51206628858_11b56a03b7_b.jpg