US$ 17.99
From one generation to the next
The books he wrote and illustrated under the name Dr
removable brake
5 colors of clay
with unique shapes for curious minds
Ugears Stem Lab Gearbox art kit From one generation to theLearn how the manual GEARBOX works: The Gearbox is a stylised educational model, an interactive study guide to the mechanism, only for learning its essentials and principles of working. A mechanical gearbox is a reducer that provides speed and torque conversions from a motor to the driving wheels. After assembly, you can experiment with the' Ugears manual Gearsbox, by turns, choose I, II, III, or reverse with a kinematic pair of gears with different
US$ 17.99
US$ 10.00
US$ 10.00