MATERIAL: Made ofoptic glass, durable and clear, good for photography and Teaching.Decorate your home with sun light, and let you home full of rainbow even in sunny days.FUNCTION: Useful to split beam of light into different spectral components which are displayed as the colors of the rainbow. Create a gorgeous rainbow for your kids with help of this prism, they will be pleased and feel much fun, enjoy your family time.DIMENSION: The prism length is 30x30x30mm, make it easy to hold in front of the cameraslens and make especial photo. it is pretty small and compact, portable enough to carry out and convenient to store with no much space taken.APPLICATION: The glass prism can be use for teaching light spectrum physics and the way of prism bends light can have some amazingly stunning effects on your shots.GREAT GIFT: Made of optical glass, it is crystal clear and looks very pure, full of high-end and classic feeling.Give it to teenagers to save them from difficult physical lessons or let little boy have fun with self rainbow-creating.Features:- Material: K9 Cristal Glass- Size: 1.18'' x 1.18'' x 1.18"-Weight: 3.17oz- Can be used as teaching tools, research tools or decorations. - It may improve children's interest of sunlight and help them to discover some interesting phenomena. - Children can get the initial experience of the refraction of light perception and stimulate their curiosity. - A necessary equipment for science class of kindergarten, primary school , junior high school and high school. - Suitable for non-professionals to make some experiments for explaining the basic theory of light. Tips When a beam of sunlight (white light) enters from either side of the cube prism, it will be refracted by the cube prism into three colors of red, green and blue light, which is called three bases of the light. Note:1.In different situations, the observable colors may be slightly different. 2.Please place the prism in the dark surroundings, illuminate it with a beam of light, and then slowly move the angle to observe the color change. 3.Please do not place the prism directly in the bright surroundings, it is difficult to observe the best effect. Package Included:1 x Cube Prism1 x Gift Box