Engino® Mechanical Science Cams & Cranks Kit makes learning about physics FUN!
Inquisitive youngsters will learn all about transmitting power using cams and cranks, converting motion, and more... all while they have fun building 5 different educational models! Kids will learn to make an oil drill, flying eagle, crane, and more, and with the included 36-page activity, it's surprisingly easy. 104 pieces in all. For children 8 and up.
Warning: Choking hazard, for children 8 and up.