Hanayama Level 2 Cast Puzzle - Key II - Key II, designed by Otake & Wong, emphasizes the style and precision of the original Key puzzle, one of the longest selling Hanayama puzzles in existence. The object of Key II is to separate the two keys and then reassemble them to their original state. Key II looks simple but in fact, involves a trick to unlock its mystery. Beginners should be careful not to pull them apart by force. Can you take it apart and put it back together again?