Ships From Hong Kong. This item includes 3pcs, L(4.5*9cm), M( 4*7.5cm), S( 3.5*6.5cm). Made of plastic. This science exploration toy using the reflection principle of prism, you can see the colorful scenery througth the eyepiece. When rotate it, the scenery in your eyes will be different, how wonderful it is. This kaleidoscope helps to develop an interest of science experiments and exploration, stimulate creativity. It is a perfect science educational toy, also a good gift for your kids.