Whether you’re hitting a tennis ball or mopping the floor, the necessary motions either originate in your core, or move through it. Your core is about more than just your ab muscles, it’s your body’s powerhouse. In other words, it helps you do just about everything. The durable, non-skid NO. 003 Exercise Wheel provides stability as you extend and roll out to take your abdominal exercises to the extreme. While the exercise wheel strengthens & sculpts your midsection, it also builds muscle in your upper and lower body, giving you the benefits of a fat-blasting total body workout that you can perform anytime, anywhere!