This kit is designed to teach children about the principles of wireless power transmission and to cultivate an interest in new energy. It is a great way to encourage children to think critically and creatively. With its comprehensive materials and easy-to-use instructions, this kit is perfect for beginners and elementary school students. 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. -Teaches principles and concepts of wireless power transmission. -Fosters a curiosity and enthusiasm for alternative . -Promotes the development of analytical and innovative thinking skills. -Provides comprehensive materials and user-friendly instructions for easy experimentation. -Designed specifically for beginners and elementary school students, making it accessible and engaging. Package list: 1 x set of DIY Electric transmitter 1 x set of DIY Power receiving unit 2 x specifications