K-nex Big Ball Factory Building Set
Spot on Value!
Encourage your kids to get more creative and scientific with the building process! This battery-powered set has 3,152 colorful pieces and includes a motorized chain.
- Factory building set contains 3152 classic K'nex pieces to build a working ball machine
- Equipped to build two unique models from the set
- Includes a battery-powered motor that gives life to the K'nex pieces
- Includes an easy-to-follow instruction manual
- Encourages STEAM / STEM subject development
- Made in the U.S.A.
- Ages 12 and up
- 2 AA batteries not included