This children's building kit is perfect for children who want to develop their hands-on skills and spatial imagination. With its easy-to-use materials and simple instructions, this kit is perfect for children who are just starting to learn about science and technology. It is a great way to encourage children to explore their creativity and imagination. Features -Color:Assorted Color -Material:Wood and copper -Size:10.00X9.00X8.50cm/3.93X3.54X3.34in -Size:11.50X9.00X8.50cm/4.52X3.54X3.34in -Note: need to assemble by yourself. -Develops practical skills and enhances spatial imagination. -Utilizes user-friendly materials and provides clear instructions. -Ideal for young learners who are exploring the and technology. -Fosters creativity and stimulates . -Great for DIY subject, science education, development of hobbies and interest. Package list: 1 x set of DIY Electric transmitter 1 x set of DIY Power receiving unit 2 x specifications