Features: 1. With beautiful and unique design, there will be completely different color rendering from different angles at the same environment 2. No defect, no burr, made of K9 optical glass. All surfaces can be refracted. 3. Easy to carry, you can carry it in your pocket or backpack. Even on the desktop, it doesn't take up much space. 4. This is a nice demonstration of beam splitting and light filters, awesome color combinations that can be created. 5. This is a cool tool for photography, make your photos unique without having to use any effects, It is fun to use and gives each picture a different look. Can be used in optical experiments and science recognition. 6. It's not just for education and filming.Place it in dark place, irradiate with a direct light source, can present beautiful optical phenomenon, very fascinating. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3cm deviation due to manual measurement. Specification: Type: Optical Glass Cubes Prism Material: K9 optical glass Size: as picture show Package List: 1 x Optical Glass Cubes Prism