- The Einstein Collection Einstein Fish Metal Puzzles – 3D Brain Puzzles by Professor Puzzle.
- Contains 1 large interlocking metal puzzle, fish shaped, medium difficult.
- Can you use your finger dexterity & creative thinking to solve this interlocking metal puzzle?
- A perfect gift for any Physicist or Mind Puzzle enthusiast.
- Part of Professor Puzzles range of Wooden 3D Brain Teaser Puzzles & Adults Brain Teasers.
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