Description: Material: Optical Glass Color: Transparent Side Length: 3cm / 1.18inch Prism Length: 20cm / 7.87inch Package Size: Approx. 23*5.8*4.7 cm / 9.05*2.28*1.85inch (L*W*H) Triangular prisms are used to disperse light, that is to break light up into its spectral components(the colors of the rainbow). This kind of optical glass prism can reflect seven-color sunlight. It can be used to teach children to explore the mysteries of light, stimulate a child's thirst for knowledge, and improve the children's interest of understanding the magic world. Package Includes: A Triple Prism in a Decent Box
