Ugears Tractor STEM Each buzzer requires 2 x

Each buzzer requires 2 x AAA batteries (not included)

Pieces: 811

A treat for adult enthusiasts – This build-and-display model makes a thoughtful gift for an experienced model maker

what it’s made of and how it started with a Big Bang

Ugears Tractor STEM Each buzzer requires 2 xNumber of parts: 97 Assembly time 2 3 hours Level: Easy Model size: 20. 1*8. 7*13. 7 cm Tractor from UGEARS is a rattling greeting from the past century. No electronics, just plywood, rubber band motor and tons of fun! The motor has a transmission switch that provides three options: park, drive and sport. The Drive mode will get it going slowly, covering about 5 cm per second. Switch the model to sport to see your Tractor speeding up ahead! Self