Activity & Learning Toys

DIY Assembly Metal Electric Engine Model Kit, High-Speed Simulation Dynamic Model Up To 600 RPM, Ideal for Tech Enthusiasts, Educational STEM Projects for Teens and Adults Explore mechanical engineering with a 4-stroke internal combustion engine model kit, featuring textured metal parts for a hands-on learning experience. Perfect for those eager to understand engine mechanics through assembly. Enhance your building... DIY Assembly Metal Electric Engine Model Kit, High-Speed Simulation Dynamic Model Up To 600 RPM, Ideal for Tech Enthusiasts, Educational STEM Projects for Teens and Adults