Package Dimensions:13.5 x 6.3 x 3.9 cm; 120 Grams Educational Objective(s):Literacy & Spacial Awareness Number of Game Players:1 Batteries Required?:No Batteries included?:No Material Type(s):Crystal,Glass Colour:10cm Crystal Triangular Prism with Gift Box, Optical Glass Refractor 4/10cm Portable Photography Prism Physic Teaching Supplies for Science Experiment Light Spectrum Class Photo Decoration Functions 1.To create rainbow effects - When a prism is placed in sunlight, turning the sides produces a rainbow of colors. 2.For physics teaching - This is the most intuitive way to show that light is actually made up of a spectrum of colors and talk to students or kids about how rainbows form. 3.Amazing Photography Tool - Prism is a great auxiliary tool for both amateur and professional photographers to take cool and unique photos. 4.A great tool to play with in the sun light with your families or friends. Features 1.Made of premium K9 crystal for better refraction effects and clear reflection. 2.Smooth polished surface and edges for comfortable touching and holding 3.Perfect size to carry for photography, teaching, learning, presentation, etc. 4.Comes with an collective box for easy carrying and storage. 5.A wonderful gift for students or photographers. 6.Two options available: (4- 100 x 30mm / 3.93 x 1.18 or (7 - 180 x 40mm / 7.08 x 1.57) About this item Premium Crystal Prism - Made of 100% K9 crystal glass for better refraction effects and clear reflection without any fuzzy or hazy defects. Smooth polished edges for comfortable holding and will not hurt your hands. Please be careful not to drop it or bump it to prevent it from breaking. Make a Rainbow by Refraction Easily - As the same medium has different refractive indices for various monochromatic light, the prism separates each monochromatic light, creating seven colours, also known as dispersion, which are displayed as the colors of rainbow. Refractor fro Physics Teaching - By placing the prism in the light of the sun, turning the sides to produce a rainbow, you can explain to kids that light is actually made up of a spectrum of colors and talk about how rainbows form. This is the most intuitive way to stimulate kids and students interest in learning. Amazing Photography Tool - Prism is a great tool for both amateur and professional photographers to create interesting and wonderful effects in their pictures. It is really so much fun to play with and to add a bit of flare to your photography. Great Gift - Package comes with a gift box for easy storage and protection. It is an helpful and interesting gift for students, photographers, fashion bloggers, teachers or those who are into science and photography. See more product details Premium Crystal Prism - Made of 100% K9 crystal glass for better refraction effects and clear reflection without any fuzzy or hazy defects. Smooth polished edges for comfortable holding and will not hurt your hands. Please be careful not to drop it or bump it to prevent it from breaking. Make a Rainbow by Refraction Easily - As the same medium has different refractive indices for various monochromatic light, the prism separates each monochromatic light, creating seven colours, also known as dispersion, which are displayed as the colors of rainbow. Refractor fro Physics Teaching - By placing the prism in the light of the sun, turning the sides to produce a rainbow, you can explain to kids that light is actually made up of a spectrum of colors and talk about how rainbows form. This is the most intuitive way to stimulate kids and students interest in learning. Amazing Photography Tool - Prism is a great tool for both amateur and professional photographers to create interesting and wonderful effects in their pictures. It is really so much fun to play with and to add a bit of flare to your photography. Great Gift - Package comes with a gift box for easy storage and protection. It is an helpful and interesting gift for students, photographers, fashion bloggers, teachers or those who are into science and photography.