Hanayama Cast Puzzles are well-crafted metal puzzles that stand out not only for their exceptional quality but also for their extraordinary and high-quality design. The name 'Cast Puzzle' comes from the English term to cast, which means to mold metal.

The challenge of this intricate metal puzzle is to separate the pieces and then reassemble them.

A winner of the 1st annual World Puzzle Design Competition in 2001, this puzzle was designed by the young Dutch phenomenon Oskar, who is regarded as one of the brightest creators in the world. The gear showcases a unique type of movement.

Once assembled in its final form of beauty, the gear, fixed in a cube box, could serve very well as a desk decoration, satisfying a kind of calming intellectual curiosity. The key word is 'teeth'.