This brass puzzle was first introduced to me by Prague's own, Professor Bakalar. I borrowed it in Atlanta and returned it to him in Luxembourg half a year later. While in my possession, I managed to replicate it, with full permission, of course. This Cast Puzzle version may be even better than the original. It definitely remains one of the more amusing puzzles. The key idea with this one is its "cage." Provides puzzles for older children and adults which are solved using a blend of inspiration and logic. The challenge is to take the puzzle apart and put it back together. Simple, yet so deep, you will need your hands and your brain on board to solve the huzzle puzzles! Develops imagination and creativity A great gift idea Ages 8+