The Cast Key is one of the best-selling puzzles among Hanayama’s Cast Puzzle series. We have created a new version of this puzzle emphasizing style and precision. Designed by Otake & Wong, the object is to separate the two keys, then return them to their initial state. It looks simple, but in fact involves a little trick. Beginners should be careful not to pull them apart by force.

The theme of this puzzle is, surprisingly enough, “Key”.