| Type | Puzzle |
|---|---|
| Age Level | Adults |
| Recommended Age Range | Adults |
Check the listing for details. Calibron 12 Puzzle | Impossible Brain Teaser for Adults. Condition: New. Listed at 38.95 USD. This handcrafted puzzle challenges you to fit 12 uniquely shaped pieces into a perfect square—there’s only one solution! A perfect gift forpuzzle lovers, engineers, and collectors. Includes a solution guide in case you need help!
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