1、The delicate appearance of an optical glassiangle prism can be given as a gift, used as a tool for studying speca in scientific experiment teaching, or used in photography to achieve some unexpected effects. 2、You can explain to children that light actually consists of a series of colors, talk about how rainbows form, and then reinforce the message by demonsating. 3、Optical glass can create bright and beautiful rainbows by splitting light beams into different specal components, which is beneficial to the teaching of chromatography in physics courses 4、 quality optical glass, made of K9 optical glass, with better refraction and clear reflection. 5、The rainbow light displayed by the glassiangle prism is applied to the photographic effect and the filter of the camera lens Features: The delicate appearance of an optical glassiangle prism can be given as a gift, used as a tool for studying speca in scientific experiment teaching, or used in photography to achieve some unexpected effects. You can explain to children that light actually consists of a series of colors, talk about how rainbows form, and then reinforce the message by demonsating. Optical glass can create bright and beautiful rainbows by splitting light beams into different specal components, which is beneficial to the teaching of chromatography in physics courses quality optical glass, made of K9 optical glass, with better refraction and clear reflection. The rainbow light displayed by the glassiangle prism is applied to the photographic effect and the filter of the camera lens Specification: Material:K9 Optical glass Size: 30 * 30 * 60mm / 1.2 * 1.2 * 2.4in Package list: 1 xiangular Prism 1 x Gift box