Abstract: A punching device for boxers to be used simultaneously by spaced apart facing boxers, the punching device connected to the floor with an extension coil spring attached to an upper post, the upper post then having oppositely situated outwardly extending punching or boxing bags, the punching bags attached to the upright upper post by separate extension coil springs. One boxer will hit one boxing bag causing it to retreat from his blow while simultaneously imparting motion into the opposite boxing bag, the resultant movement of the opposite boxing bag effected by the response of 3 extension coil springs. Such presents a boxing bag moving in an unpredictable path for the opposite boxer, who, in turn punches his bag which then effects the first boxers boxing bag. Such device provides unexpected response to another fighter's punches simulating movements of opponent boxers in a boxing or sparing match.