Optical glass prism, there are four lights, any one of the of the illumination surface, from the remaining three light out of the three primary colors of red, green and blue, respectively called three base light. A great gift for boyfriends, girlfriends or kids. The blue light inside the gift box, when opened, the eye-catching effect is immediately presented. Beautiful and unique design, the same environment, viewing from different angles, there will be completely different color rendering. The cool black gift box has built-in lights, which are turned on and off, and turned off and off, and the colorful colors are instantly presented., Manufacturer: KieTeiiK