[12 Different Types of Robots]: 12 different construction robots that move on land or water for your child to build. There are two levels of complexity to challenge their maneuvering skills, from an introductory level for younger kids to an advanced level for older kids. [NO BATTERIES REQUIRED]: The robot kit includes a solar panel that converts solar heat into electricity to drive the motors, which in turn drive the gears to keep the machine running smoothly. Provide your kids with hands-on experience using green technology, let them learn about renewable energy and have fun. [SUPPORT STEM EDUCATION]: This science toy will teach kids how to design a robot that uses solar energy, while helping to develop manual dexterity, problem solving skills, improve logical thinking and self-confidence, and promote the importance of teamwork. It is also the perfect toy to encourage young children to learn about mechanics and engineering, improving their science, technology, engineering and math skills. [DIY for CREATION]: Challenge your child to build their own robot using 190 easy-to-build parts and accessories that will enhance their imagination and creativity. We provide detailed instructions for 12 robot designs from Level 1 to Level 2, guiding your child step-by-step for easy building