QUARTET Hanayama Cast Metal Brain Teaser Puzzle (Level 6)
The cast nut caused difficulty level 6 by Hanayama (Original Version)
Bepuzzled Hanayama Infinity Metal-Cast Level 6 Brain Teaser Puzzle
NUTCASE Hanayama Cast Metal Brain Teaser Puzzle (Level 6)
CAKE Hanayama Cast Metal Brain Teaser Puzzle _ New 2017 Design _ Level 4 Difficulty Rating
ENIGMA Hanayama Cast Metal Brain Teaser Puzzle (Level 6)
SPIRAL Hanayama Cast Metal Brain Teaser Puzzle (Level 5)
EQUA Hanayama Cast Metal Brain Teaser Puzzle (Level 5)
Hourglass Hanayama Cast Metal Brain Teaser Puzzle (Level 6)
SQUARE Hanayama Cast Metal Brain Teaser Puzzle (Level 6)