Features: 12 different building robots which can move on land or wate for your child to build, two levels as to complexity, starting from entry level for younger child to advanced level for older child to challenge their manipulative skills.This is a great way for your child to get started in robotics toy. Powered by the sun,no batteries needed.The robot kit includes a solar power panel that collects solar heat energy into an electric energy drive motor, which drives the gears to make the machine run smoothly.Offers your child practical experiences of working with green technology, let them learn about renewable energy sources and have fun doing it with. This science toys will teach children how to engineer a robot that uses solar power, while help to develop manual dexterity,problem solving skills, improve logical thinking,self-confidence and promotes the importance of teamwork & collaboration. Improve your child's imagination and creativity by challenging them to build their own robots with 190 easy-build p