["Optical Glass Triple Triangular Prism with Stand Physics Light Spectrum Tool Optical Element\r\n\r\nDescription:\r\nLarge optical prism with a base is very convenient to change prism angle. It can be used in science class of kindergarten, primary school, high school, as a demonstration equipment, to study the dispersion of light. It also can be used as toy to Develop intelligence of children.\r\n \r\nFeatures:\r\n1, Very convenient to change prism angle.\r\n2, Can be used for teaching light spectrum physics.\r\n3, Used in science experiments involving light spectrum.\r\n4, Precise cuttings, offer good reflections and light separation.\r\n \r\nSpecifications:\r\nMaterial: Plastic base, high-quality optical glass prism\r\nColor of Base: Black\r\nSize: 8 x 2.5 x 16 cm\r\n \r\nInstruction:\r\nPut prism under sunlight. Rotating prism till light appear seven colors on a wall or white paper.\r\n \r\nPackage Includes:\r\n1 x Optical Prism\r\n1 x Bracket Base"]