Project Genius Meffert's Gear Brain Teaser Ball

This is a Meffert's Gear Brain Teaser Ball that's produced by the good folks over at Project Genius. They make various levels of challenging puzzles! 

Project Genius uses a 5-star rating system for difficulty with 5 being the most difficult. The Gear Ball has a rating of 5 stars making it one of the most difficult puzzles. 

Great for any fan of brain teasers! 

Recommended Age: 9+

Condition: Brand New