[Product features]: The optical prism consists of highly permeable, highly transparent and high-resolution optical glass. The surface is smooth and the inside is transparent and clear. The edges of the optical prism are beveled to prevent the edges from being too sharp. The two sides are matte and opaque. It can reflect the spectrum of multiple colors by simply placing it under the sun, which is very bright and bright, and the rainbow is clear and visible. [Applicable]: It can be used for classroom teaching, rainbow photography and lighting layout , and can also be used as a teaching aid for classroom physics teaching, to teach children the principle of refraction or how to recognize the The spectrum. Triangular prisms can refract white light into rainbow lights of different colors. [Product details]: Material: Optical Glass Size: Optical Prism 5 * 3 * 3 cm / 1.96 * 1.2 * 1.2 inch Packaging: 1 piece optical prism Color: Transparent [prompt]: Note: Because the above dimensions are measured manually, the actual dimensions of the items received may vary slightly from the dimensions given above. For the reasons shown on the display, the color of the product image may be slightly different from the actual image received.