With the Tank Wheel abdominal roller, you will strengthen your abdominal muscles and the entire upper body, while also improving your balance. Proper technique is essential to avoid straining the muscles. Kneel on the floor, grasp the handles, and with your core tight, roll the wheel forward as far as you can while keeping your torso in a straight line. Use your abs and not your hips to return to the starting position. The roll-out is considered one of the most challenging yet effective abdominal exercises. It also features non-slip handles for a better and more stable grip.