Meet the AbStinger : a clever functional trainer that helps you work your core and upper body hard indoors or outside. It can move on any smooth surface and provides a 360-degree range of motion. The AbStinger has a sturdy steel frame and rubber casters. It has a modular design with two parts that come together in seconds.
The AbStinger is easy to use. Simply start off in plank position and do a circle, lifting one hand at a time. The exercise mimics the pommel horse routine.