Buy at http://www.puzzlemaster.ca/browse/inventors/oskar/5440-gear-shift Copyright (c) 2010, M. Oskar van Deventer & Bram Cohen. This puzzle has eight gears around a cube. All gears can turn together. But it is also possible to pull the gears apart in two sets of four. Each set of four can be turned individually. And there are three ways to split the gears. The object of this puzzle is similar to Rubik's Cube: scramble it and then try to solve it. The puzzle on the video was 3D-printed using nylon-powder SLS technology, see http://www.shapeways.com/model/139482/gear_shift.html. It is the very first prototype. Now a mass-produced version is produced by Mefferts and available from PuzzleMaster.ca.