Thinkfun UnHinged Puzzle</br></br>Product Description</br></br>One brain-twisting game with 40 challenges;Folding puzzle flips folds and stacks for endless fiddling fun;4 challenge levels range from beginner to expert;Great for puzzlers ages 8 to adults;Includes: 1 Folding Hexagon Puzzle?? 1 Booklet with 40 Challenges from Beginner to Expert</br><br/>http://www.amazon.com/gp/product/B01LXHHJ22