Symmetrical, edgy, and dazzling, the structure of the Japanese Diamond Puzzle is made out of 12 non-identical, interlocking pieces that form a smooth shape. Each piece is precisely cut so they interlock perfectly to make a solid structure - you may not even know where to begin pulling it apart! Similar to many construction or interlocking puzzles, the key to unraveling the diamond is to remove just one “key” piece. Afterward, there are precise steps that must be followed to unlock the rest of the puzzle. After the pieces have come apart, are you up to the task of rebuilding it? This high-level puzzle is perfect for serious puzzlers with heaps of extra time on their hands. The Japanese Diamond is perfect for fine-tuning motor skills, exercising the brain, and taking a break from a screen for once! Once you’ve solved the puzzle it makes a wonderful display piece to present on a bookshelf or coffee table. Once solved, the puzzle also makes a gorgeous art piece to proudly display on a bookshelf or coffee table. For more complicated and unique burr puzzles check out our full Burr Puzzle Collection. Warning: Choking Hazard – Small Parts. Not for Children Under 3 Years.