Ivan's Hinge

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It's a fidget AND a puzzle!

Flip it, fold it, figure it out. Ivan's Hinge is a baffling brainteaser to wrap your mind around and put your fingers to the test. Fold, loop, turn, open, close, and bend. You'll soon discover the challenge behind Ivan's Hinge. This puzzle reinforces problem solving skills, concentration, hand-eye coordination, and cognative thinking. 

Includes 56 tetromino challenges.

Go ahead, pick it up. We are you to put it back down!

Recommended for ages 8 and up. This is a single player challenge.