The solar-powered windmill toy is not just a decorative piece but also a functional science teaching tool. It can be used in classrooms to illustrate the conversion of solar energy into mechanical energy. This hands-on model helps students grasp complex scientific concepts through interactive learning. Features -Color:White -Material:Plastic -Size:31.50X21.40X11.00cm/12.38X8.41X4.32in -Size:8.50X8.50X0.30cm/3.34X3.34X0.12in -Speed: 20 circles/minute. -Light :More than 500LUX. -Sturdy plastic: made from excellent plastic, this windmill model is built to withstand the test of time, ensuring use -Solar-powered rotation: the solar panel base powers the windmill to rotate in sunlight, providing a mesmerizing display of your favorite small items -Easy to assemble: no glue or batteries required. simply place the windmill in sunlight and turn on the switch to start the rotation, making it convenient to use -Chic and versatile: its stylish design makes it a proper fit for any decor, including homes, offices, classrooms, and parties, making it a great present choice -Detachable display tray: the windmill features a transparent display tray that can be attached to the base, converting it into a rotating stand for showcasing Package list: 3 x solar windmill