1.Material: The square cubic prism is made of K9 optical glass, which is durable, clear, textured, and provides better refraction and clear reflection. 2.Unique craftsmanship: The glass prism is designed with a six-sided polishing process, which is exquisite and beautiful. Under the same environment and from different angles, it shows completely different color performance. 3.Portable design: The glass prism is small in size and can be easily placed in front of the camera lens to take special photos. Carry it around and it doesn't take up much space. 4.Feature: The glass prism is used to appreciate the beautiful optical and synthetic experimental light. They are used to split the light beam into different spectral components and display them in rainbow colors. 5.Wide application: Glass prisms can be used in the teaching of spectral physics or research tools, as well as in decoration and photography, thereby achieving excellent filter effects. A creative gift for children, suitable for learning about physical spectrum.