Introduce children to the with a hands- using the Hand-cranked Generator Fun DIY Toy Science Experiment Teaching Tool. It is an engaging tool that sparks curiosity and encourages exploration. With this toy, children can learn about the principles of electricity and the importance of sources. Features -Color:Transparent -Material:Magnet, plastic, metal -Size:16.00X10.50X5.00cm/6.29X4.13X1.97in -The materials used in this product ensure that it is durable and , which can be used for a long time. -With its easy-to-assemble and disassemble design, this toy can be used repeatedly without any hassle, making it a convenient choice for busy families and classrooms. - It is easy enough for students and kids to explore in advance and get interested in physics science. -This toy encourages children to experiment and explore, fostering a love of science and technology that will serve them well in the future. -Whether you're a child, this fun toy is sure to provide hours of entertainment and learning, making it a great choice for anyone who loves to explore. Package list: 3 x Hand Generator diy material