42-PIECE STARTER KIT: Use your imagination to create anything you can conjure up with this 42-piece set. The tools and components of this playset are easy to use and perfect for little hands and the appropriate skill level for children ENDLESS CREATIVITY: The building toy includes an inspiration card to give you ideas including a see-saw, a balance bike, a windmill, a prop plane and a model of a sitting fox. Your little budding engineer will let their creativity run free and build anything they like COMPATIBILITY: Pair this toy with other Junior Inventor sets so you can add to your existing projects – the only limit is your creativity FUN, PRODUCTIVE PLAY: Hape’s engineering set supports logical thinking and cognitive system development through interactive play PROMOTES STEAM LEARNING - This innovative playset provides your kids with problem-solving skills development as well as an understanding of the principals of Science, Technology, Engineering, Art and Mathematics AGE RECOMMENDATION: Four years and up