The Masterkidz STEM Wall 79-Piece Gears & Chain Set offers an interactive way for children to explore motion, cause-and-effect, and early engineering skills. Each gear wheel features a smooth center bearing, allowing kids to mesh multiple gears together effortlessly and create long, functional gear trains on the STEM Wall.

The adjustable chain length lets children customize their builds, while the set includes two handle gear wheels for easy manual rotation and hands-on exploration. Built for durability and versatility, this STEM Wall gear set is ideal for both indoor and outdoor learning environments, making it a perfect addition to classrooms, playrooms, and activity centers.

Weight:2.87lb/1.3kg.  Material: Beech Wood, ABS