The Liveup SPORTS AB Wheel Roller AB Pro is one of the simplest and quickest proven exercise devices available. It offers one of the best tools to tone and strengthen your abs, shoulders, arms and back. The product can even tone those hard to reach lower abs muscles, all without the need for doing hundreds of sit-ups or crunches. It features high-density friendly Rubber handles with non-slip surface. The product comes with solid steel intenational standard of thickness 2.1mm, high security and endurance. This Ab Wheel is constructed for 500 lbs+.