iLory White Solar Windmill,Solar Teaching Materials,Desktop Model (Round) Material: ABS plastic Size: Round: 40 * 13 * 23 (cm); Rectangle: 39 * 12 * 10 (cm) Easy to assemble, no tools. It can be used as business gifts, souvenirs concept of environmental protection or conferences, the enlightenment teaching aids in children's environmental awareness,etc. Nice home accessories,can be placed in the cabinet lights and window desk or table, and rotated leaves by the light.