Cabin Glass Prism: The light dispersion prism is designed in the shape of a small cabin, with a unique shape that is more suitable as a decoration. It is not only a unique decoration, but also reflects rainbow like colors through light Glass Material: The optical prism cube is made of glass, with a smooth surface, not easily broken, and transparent color, making it perfect for placing in your favorite place Size: Optical prism cube include 1pc about 18mm(0.71 inch) wide, 20mm(0.79 inch) long, 20mm(0.79 inch) thick RGB Optical Prism: Light can easily pass through a optical prism cube, and you can manipulate it by refraction, reflecting bright rainbow like colors and creating kaleidoscopic patterns Good Gifts: Light dispersion prism can not only be used as decoration, but also as a gift for family and friends who enjoy decorating rooms and photography during Christmas, Thanksgiving, New Year, and other occasions