Meet the AbStinger: another fitness tool that can give you a killer core, upper body and cardio workout. This functional training tool can be used indoors or outdoors on any surface. It offers 360-degree range of motion. The AbStinger has a sturdy frame and rubber casters. It comes with a modular design.
To get started, go to a plank position and start doing a circle, lifting one hand at a time. The exercise mimics the pommel horse routine. This project is getting funded on Kickstarter.