Powered by the Sun: No need batteriesthis solar robot kit includes a solar panelit collects solar heat energy into an electric energy drive motor to support the robot to craw.For better effectwe suggest to play it on clear sunny days. Make Idea a Reality: Not only the pre-designed 13 types of robotskids can also use the 261 pcs building blocks to create their own original robots.It is a nice STEM robot kit to inspire kid's imagination and creativity.More possibilities are waiting for our little builders! Manufacturered by POKONBOY. Learning Through Play: This is nice educational STEM toy to make kids experience and learn about renewable energy when playing themenhance children's enthusiasm and curiosity of sciencetechnology and robot knowledge.offers your kids countless happy hours. Ideal Gift for Kids: The solar robot kits will be packaged in a exquisite gift boxit is a ideal educational gift for you kids on BirthdayChristmas DayChildren's Day and other special days.Enjoy the happy and funny time in assembling and playing the robot with you kidsSTEM building toys are also a great way to build social bonds and strengthen your relationship with your kids.Suitable for boys and girls 8 year olds and up. Buy 1 & Get 13: Kids can follow the step-by-step user's manual to the build 13 different types of robots by splitting and reassemblingwhich can move on land or water.From simple to complex levelsexercising your kid's problem solving and hands-on ability.