The Tone Fitness Abdominal Toning Wheel is an easy to use exercise equipment that can help add strength to your core and tighten your abdominal muscles. At the gym or in your own home, you can use the wheel to help work out your lower and upper back, hips, chest, arms, butt and legs. These wheels are portable and easy to store just about anywhere. Non-slip wheels provide stability. The contoured grip handles allows for a smooth and comfortable workout.