Magnets in Motion 37pc Gear Set Push, click, and spin! Construct magnetic towers with spinning gears. Children will love to interact and discover the power of magnets. Use the hand crank to spin your creations and take your 3D building skills to a higher level. Future engineers are sure to develop 3D modeling skills and be inspired by the never-ending building opportunities! For ages 3 and up. This 37-piece magnetic building set from Rainbow Products is perfect for kids aged 6 and above who love to construct and create. The set includes gears and other pieces that allow for motion to be added to the structures built. The Magformers product line is known for its high-quality and durable pieces that ensure long-lasting fun. The set is themed around construction and architecture, making it perfect for kids who love to build and create. The set includes 37 pieces, including different types of gears, making it perfect for kids who like to experiment with motion and mechanics.