STEM LAB by UGears UTG0063 Pendulum Era_1989 + Reuses factory ball bearings for

Reuses factory ball bearings for smooth operation

Overall Width: 9

Reliable planetary gear differential

Revell 301 1/535 USS Missouri Battleship The "Mighty Mo" U

Self-righting Hull Design: It's designed to be as stable as possible with a self-righting feature if you ever flip it

STEM LAB by UGears UTG0063 Pendulum Era_1989 + Reuses factory ball bearings forSTEM LAB by UGears UTG0063 Pendulum It is high time to start a consistent, steady stream of fun with a UGears STEM LAB Pendulum. Get ready for measured challenge and enlightenment with this stylized educational model that makes learning the essentials and principles of working pendulums easy and entertaining for all ages. Whether you're interested in the mechanism that makes mechanical clocks tick or the element that keeps metronomes steady and