Inside the torso of every Centurion hero figure is a Chest Shaft - a rotating cylinder with a plug receptacle at either end. The shaft can turn freely within the figure's chest, transmitting rotational force from the front of the figure to the back and back again. This can be used for such diverse purposes as rotating accessories, activating play mechanisms, and transmitting commands from one side of the figure to the other (for instance, activating a missile launcher) .

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