Features Unique Design: Large shiny multi-faceted crystal prism, beautiful and unique cube six-sided design, no bubbles, no scratches, light-transmitting, in the same environment, different colors show different angles. Cast a beautiful rainbow in your room. Exquisite Packaging: The product comes with a cool black gift box. After opening the gift box, the built-in light will turn on, colorful lights will appear, and the lights will turn off when turned off. Packaged in a beautiful gift box, it is a great choice for those looking for elegance and beauty for Valentine's Day, Mother's Day, Wedding, Birthday, Thanksgiving, Christmas. Wide Range of Applications: If you want to take some stunning photos, or some basic optical research, or give as gifts to kids and friends, etc., this high-quality K9 optical crystal photography prism is highly recommended for you. Decoration: 100% high quality optical glass, made of K9 optical glass, with better refraction and clear reflection. Adds brilliance to your living space or studio, looks great and can be used for decoration. Note: We strive to provide you with the highest quality products and the best customer experience. Your positive comments on our product pages will greatly encourage us to improve our services. If you are not completely satisfied, please feel free to contact us. Features: 1.Beautiful and unique design of cubic six sides can be pervious to light, in the same environment, different Angle different color rendering. 2.100% quality optical glass, made of K9 optical glass, with better refraction and clear reflection. 3.Used as a teaching or research tool. 4.Beautiful appearance, can be used for decoration. 5.Can also be used in photography, which can produce a good filter effect. 6.The product is equipped with a cool black gift box. After opening the gift box, the built-in light will be opened, colorful light will appear, and the light will be extinguished when closed. Specification: Material: K9 optical glass Size: 23 * 23 * 23mm / 0.9 * 0.9 * 0.9in Power supply: 1* cr2450 button battery Package list: 1 x Optical Glass Prism Package List