Power Roller Core (Exercise Wheel)Power Roller Core (Exercise Wheel) trains multiple parts of the body in the same time as it can exercise your hips, thighs, waist arms and calves, 80% of the muscles and joints of the whole body. The product also works on strengthen and toning your entire core, upper abs, lower abs and oblique. The products design features a strong steel coil that gives resistance on the way out, and assistance on the way back. With high quality foam hand grips, a no