About this projectGreat for kids science projects: This solar powered robot includes gears, screws, solar panels and other building parts. Through assembling exercises, help children learn the mechanical transmission structure of the car model and understand how solar energy is converted into mechanical energy. It's the perfect STEM building toy for boys and girls ages 8-12Upgrade the 2-in-1 drive motor: Two ways to operate the car roaming. One requires 2x1.5V AA batteries (battery not included) and the other is powered by the sun and moves in direct sunlight (solar panel included). Children can freely choose to play indoors or outdoors. Children can not only play freely indoors and outdoors, but also learn about solar energy and green energyPuzzle Space Exploration Toy: Relive your space adventures with this Mars rover toy. This building set is an educational toy that provides children with the opportunity to learn the principles of science, improve their creativity and develop their imaginations for space exploration. Astronaut building toys are recommended for boys and boys 6 7 8 9 10 11 12 13 14 year old girls,EASY TO BUILD & SAFETY FIRST: Kids Space Building Toys include a full-color instruction manual for easy play with clear building steps. It also comes with beautiful stickers to make the rover model more vivid. Each piece is made of durable non-toxic and skin-safe ABS plastic to keep your kids safe and give you peace of mind.PERFECT KIDS GIFT TOY: Perfect for kids interested in scientific engineering, vehicle modeling, and solar power. Great companion for the Star Wars series/space adventure. Excellent DIY building toy for kids and teens. STEM space gifts for birthdays, Children's Day, Christmas, Easter, summer camp events, back to school.