To pass the puzzle players need to insert the gear in the groove. It may be necessary to select and insert a different number of gears. When activated, the electromagnetic lock is turned off, and the inside of the module turns on the lights and the gears hidden behind the grid begin to spin. 

 * Gears can be made in different shades or sizes. Only a part can start to spin. So players can get a hint for another puzzle in the escape room. It is possible to make a hidden niche in this module, and in case of a repair the niche will open.