Description: <br>Large 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. <br> <br> <br> <br>Features: <br>1, Very convenient to change prism angle. <br>2, Can be used for teaching light spectrum physics. <br>3, Used in science experiments involving light spectrum. <br>4, Precise cuttings, offer good reflections and light separation. <br> <br> <br>Specifications: <br>Material: Plastic base, high-quality optical glass prism <br>Color of Base: Black <br>Size: 8 x 2.5 x 16cm <br>Weight: 100 g(approx.) <br> <br> <br> <br>Instruction: <br>Put prism under sunlight. Rotating prism till light appear seven colors on a wall or white paper. <br> <br>Package Includes: <br>1 x Optical Prism <br> <br> <br> <br>Note: <br>Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.<br>1、Very convenient to change prism angle <br>2、Used for teaching light spectrum physics <br>3、Used in science experiments involving light spectrum <br>4、Precise cuttings, offer good reflections and light separation <br>5、Plastic base, high-quality optical glass prism