DescriptionThis is a four-wheel drive DIY climbing car, through the students' own hands-on assembly and practical learning, it can help children learn the mechanical transmission structure of the vehicle model. Learn how to convert electrical energy and solar energy into mechanical energy, so that children can understand and master the knowledge that solar energy is a clean new energy from an early age.Features- Color: Black. - Material: Plastic. - Size: 25.00 x 4.50 x 15.00cm/ 9.82x 1.77 x 5.89 inch. - Environmental green energy solar power source, not only environmental protection, but also save the cost of buying batteries. - The science kits are designed to your children's science, technology, engineering, and math skills.- Improve their hand-eye coordination and manipulative ability and train their logical thinking and problem solving-ability. - This DIY solar toy car is a perfect educational toy, enables kids learning in play. It is a gift for birthday, christmas, etc. - There is a solar panel included that transforms the solar energy into electric energy, which drives the wheel and makes the robot run.