Features High Quality Material: High quality optical glass prism, made of K9 optical glass, better refraction effect. Strong and clear, with very high light transmittance and light refraction properties. Gifts for Children: Delicate optical glass triangular prisms can be gifted to your children. Can also be used as a decoration to decorate any place you want. Physics Teaching Tool: Under the same environment, there will be completely different color renderings from different angles. This optical triangular prism can be used to separate a beam of white light into its constituent spectra and is ideal for scientific/physical light experimentation tools and photography tools. Unique Design: The optical glass RGB prism has four lights, one of which is white light from the lighting surface, and the other three lights come from the three primary colors of red, green and blue, which are the three primary lights (the colors of the rainbow). Buy with Confidence: We guarantee you a great shopping experience. If you have any questions, please feel free to contact us, we are here to support you. Specification: Item Type: Prism Material: K9 Optical Glass Product Size: Approx. 15x15x15mm/0.6x0.6x0.6in, 20x20x20mm/0.8x0.8x0.8in (optional) Package List: 1 x Prism Package List 1 x Prism