Have you ever thought about showing your children more secrets of nature? such as the sunshine colour or a basic mathematical model? This glass prism set will help you a lot if you ever thought of sharing more happiness with your children, you will be a superman of science. This K9 Optical Crystal Photography Prism Kit includes 60mm Optical Pyramid, 50mm Triangle Prism, 50mm Crystal Ball, 50mm Crystal Cube with Gift Box. Show your children these optical glasses and the wonderful optical rainbow effects! Different angles ensure different colours. Enjoy these amazing lights and capture those moments with your camera. They are perfect gifts for friends, children and students. Package Information 1 x 50mm K9 Glass Crystal Cube 1 x 50mm K9 Glass Crystal Ball 1 x 50mm K9 Triangular Glass Prism 1 x 60mm K9 Optical Glass Pyramid How to Take Photography: The focus should be on the crystal ball to make the scene in the crystal ball clear. We have suggested using a large aperture, background blur, blur. The triangular prism casts rainbows to show the light spectrum. You can use prisms to achieve interesting effects in their pictures. With the cube, we can achieve a special effect when the light passes through it and you have fun with it. If you find that the fingerprint on the prism is not clear, please use a scouring cloth to photograph with water.