The challenge: balance all of the neurons on the single center post! How is your engineering ability? Sorry, but you may not use a rubber band, glue or any other aids.
- Made from hardwood
- Recommended for Ages 12+
- Dimensions (cm): 9 x 9 x 11
The challenge: balance all of the neurons on the single center post! How is your engineering ability? Sorry, but you may not use a rubber band, glue or any other aids.