Features 1、A beam of light bends as it passes through the prism, then the prism disperses the light into various colors in the rainbow. 2、The equilateral prism with three 30mm equal sides. 3、Surfaces and edges are well polished without burrs. 4、Crystal clear prism has better light transmittance and refraction effect. 5、Made of K9 optical that has excellent performance. 6、For teaching experiment, optical experiment promoting, rainbow DIY, taking pictures, etc. Specification Features: A beam of light bends as it passes through the prism, then the prism disperses the light into various colors in the rainbow. The equilateral prism with three 30mm equal sides. Surfaces and edges are well polished without burrs. Crystal clear prism has better light transmittance and refraction effect. Made of K9 optical that has excellent performance. For teaching experiment, optical experiment promoting, rainbow DIY, taking pictures, etc. Specifications: Type: 30x30x100 / 30x30x150 / 30x30x200 (Optional) Side Length: 30mm / 1.18in Item Weight: 100g / 169g / 346g Material: K9 optical Packing List: 1 * Prism Package List 1 * Prism