Beefunni Space Toys Solar Robot Kit comes with a upgraded solar panel and abundant parts that can be assembled into 23 different robot models (powered by solar, no batteries required), which are specially designed to improve children's hands-on ability and creativity. These stem toys can help children exercise their thinking ability and help develop their interest in stem building space robot toys. Children can assemble robots with their parents or friends to cultivate their teamwork skills. Don't worry that the build a robot toy is too difficult for your child. Just follow the detailed instructions and assembly it step by step. You will find that it is actually very simple. Children will be very excited and happy when they successfully assemble.