Teach students how to bend, bounce, and blend light. Light Blox™ are safe, durable LED light sources designed to teach students the fundamental properties of light and color. Use Light Blox™ to project a block or beam of light onto a white surface, create color mixes, produce white light, and more. Set contains 3 Light Blox™—1 red, 1 blue, and 1 green—each with a detachable slit cap. Comes with quick start guide.