Hanayama cast puzzles are some of the world's finest brain teasers, as well as being little works of art. These high-quality, cast metal puzzles come in six challenging, Mensa-rated levels of difficulty. Level 6 is the toughest level! Hourglass is 4 interlocked pieces, and is a challenge to take apart and put back together. Great for giving your mind a chance to unplug and be stimulated, and gives fidgety hands something to work on. Hanayama puzzles are recommended for ages 12 and up.
