10-11 years

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  Project Genius Inc

  Inverse Triminx Brainteaser Puzzle

  $17.99

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  Twist and turn the triangular facets in this classic puzzle that offers complexity and creativity while challenging your spatial reasoning.

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  Project Genius

  Inverse Vertigon Twisty Puzzle

  $19.99

  | /

  Rotate this mind-bending puzzle into a dizzying array of irregular shapes.

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