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Calvin's Puzzle

Calvin's 4x4 Windmill Cube Extreme

Calvin's 4x4 Windmill Cube Extreme

Regular price $17.24 USD
Regular price $24.99 USD Sale price $17.24 USD
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The Calvin's 4x4 Windmill Cube Extreme has all of the same pieces of a normal 4x4 windmill cube, but the middle two layers have been flipped! That means you have to make some initial moves before this puzzle can even turn. Give it a try!
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