Welcome to our store! 1、Very convenient for changing the prism angle 2、Used for teaching light spectrum physics 3、Used in science experiments involving light spectrum 4、Precise cuts, provides good reflections and light separation 5、Plastic base, high-quality optical glass prism Description: This large optical prism with a base makes it incredibly easy to adjust the prism angle. It's perfect for science classes in kindergarten, elementary school, and high school as a demonstration tool for studying light dispersion. It can also be used as a toy to develop children's intelligence. Features: 1, Very convenient for changing the prism angle. 2, Can be used for teaching light spectrum physics. 3, Used in science experiments involving light spectrum. 4, Precise cuts offer great reflections and light separation. Specifications: Material: Plastic base, high-quality optical glass prism Color of base: Black Size: 8 x 2.5 x 16 cm Weight: 100 g (approx.) Instruction: Place the prism under sunlight. Rotate the prism until the light appears in seven colors on a wall or white paper. Package Includes: 1 x Optical Prism Note: 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. Customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We are committed to providing you with the best after-sales service.