11-in-1 STEM Solar Robot Kit: The STEM projects for kids ages 8-16 can be build 11 different shapes of robots, including 4 vehicle models and 7 animal models: Obstacle Avoiding Rover, Buggy, Excavator, Forklift, Elephant, Crocodile, Pterosaurs, Dog-Walker, Monkey, Ostrich, Scorpion. Kids can use their curiosity, imagination and creativity to build their own robots, which is attractive, challenging and creative for them. Upgraded Power Modes: This robot is powered by the sun (solar energy), and can also be powered by batteries. The solar toy includes a solar panel, which collects solar thermal energy and converts it into electrical energy, and cooperates with the principle of hydraulic power to drive the motor and gear, so that the machine runs smoothly. When the rainy days come or at night, Children can still play with the robot toys by using the battery mode with 1pcs AAA battery. Fun Education Toy: This science toys can encourage learning of mechanics and engineering in young children, enhance your children's Science, Technology, Engineering, and Math skills, it also can help to develop manual dexterity, problem-solving skills, inspire kid's imagination and creativity, improve logical thinking, self-confidence and promotes the importance of teamwork and collaboration. High Quality & Safety: All pieces of our solar robot toys are made with non-toxic ABS materials, sturdy and durable, parts are smooth without raw edges, ensuring kids play safer. Ideal Gift for Kids: Create your own robot, your little engineer can use their imagination to make his own original robot which are facilitated early childhood progress and brain development, great gifts for boys and girls age 8 9 10 11 12 13 14 15 16, for birthday, Children's Day, summer camp activities.