Solar Powered Boat DIY Building Kit Science Explorer Toy Kids Educational Toy Description: Solar powered toy boat - absolutely no batteries required! Flat-packed for build-it-yourself fun. A great way to demonstrate how light energy can provide clean, free, efficient energy. Completely solar-powered, no battery needed. Help to let your children improve their understanding of solar energy as a renewable energy source. Arouse interest of kids in science. Solar panel converts sunlight into the energy needed to power the boat's moving. Improve parent-child relationship, parents can play with your kids to organize this toy. Product size: 19×28×6.8(CM) Package included: 1 x Solar Powered boat toy