UGEARS - STEM Lab Counter 3D Wooden Puzzle Model - 120 Parts

The UGears STEM LAB is a NEW collection of educational mechanical models for children and adults that will give you a hands-on experience and make you more familiar with a science like physics or engineering. Learn about items of common use like gears and transmissions as well as their practical application in real life. Turning the acquisition of knowledge into a joyous experience for both children and adults., THE MECHANISM OF GEARBOX IS COMPOSED OF: gear shifting lever, layshaft with gear couplings, reverse idle gear bearing, drive shaft, actuator handle.