Gear Ball variation of the Gear Cube
A variation of Oskar van Deventer's gear puzzle range is the Gear Ball developed by…
Oskar’s Gear Cube made by Meffert
The Gear-cube is a brand new concept in cube design Oskar van Deventer and inspired…
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Set of 3 Chinese Puzzle Boxes
This is a set of 3 different Secret Boxes with 3 different solutions. Solve each…