Material : Wooden Dimension : 11"x 11" x 4" Grading colors from light-dark These tablets in color box of 3 Used in montessori classroom Development of chromatic sensitivity Color tablets are used in the Montessori classroom to teach visual sense. Color Tablets provides the child a key to the world of colour and to aid in the development of chromatic sensitivity. These tablets in color box of 3, which is all about grading colors from light-dark. Brand No Brand SKU 100283812_NP-1020549324