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  1. This beautiful Nails Cube brain teaser interlocking puzzle, now comes in a keychain! The challenge is to place different pieces in the perfect positions for the wooden nails to lock the cube together.

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  2. The Pins Cube Keychain brain teaser puzzle has 7 interlocking pieces and a few combinations to solve it. The challenge is to place different pieces in the perfect positions for the wooden pins to lock the cube together.

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  3. This beautiful Tavor interlocking puzzle now comes in a keychain! The puzzle is made of twelve nonidentical wooden pieces, a few of the pieces are locked, and you have to unlock them before you can take the puzzle apart.

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  4. The string of bi-color wooden cubes forms a Hamiltonian path through a 3×3×3 grid. Build your skill and patience as you twist the snake of 27 mini cubes back into its original 3x3x3 cube. This brain-teasing puzzle difficulty is legendary! This is one puzzle that never gets any easier!

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