Engino® Wheels & Axles Kit teaches youngsters all about this quintessential simple machine!
Youngsters will learn about mechanical advantage and how wheels use friction to move objects... all while having fun building 5 separate models! Your child will have hours of fun building a tractor, motorcycle, door, car or car lift, and the included 36-page activity booklike makes it easy. Includes 132 pieces. For kids age 8 and up.
Warning: Choking hazard, for children 6 and up.