Ages 3 and up / Grades PreK and up Let the light shine through! With 6 shapes and 6 colors and lots of basic pieces based on the unit measurement of 1-1/4" they're the proper ratio for easy building. Translucent colors allow light to pass through them Use for color mixing and experimentation Ideal for use for Math and Science Perfect for building on our light tables Sturdy, lidded bin for storage Colors and shapes included: Colors: red, blue, green, yellow, orange and clear Cube: 30 pcs, 1-1/4" cubed Cylinder: 20 pcs., 1-1/4"H x 1-1/4"D Large rectangle: 15 pcs., 1-1/4"H x 3-3/4"L x 1-1/4"W Arch: 15 pcs., 1 1/4"H x 3 3/4"L x 1 1/4"W Right Triangle: 10 pcs., 2-1/2"H x 1-1/4"W x 1-1/4" L Isosceles Right Triangle: 10 pcs., 1-1/4"H x 2-1/2"L x 1-1/4"W