Hanayama's Key Puzzle is a high quality cast metal brain teaser;Discover how to separate these two interlocking pieces and then try to reassemble them!;Hanayama cast metal brain teasers have 6 levels of difficulty and each puzzle is Mensa-rated;Level 1 puzzles are considered easy by most puzzlers

• KEY Hanayama Cast Metal Brain Teaser Puzzle (Level 1)

KEY Hanayama Cast Metal Brain Teaser Puzzle (Level 1)University Games