Strengthens Upper Body Muscles, Trims Your Waistline, Burns Excess Calories. Total Body Workout in the Comfort of Your Homes. Control The Degree of Workout By Rolling Closer or Farther From Your Body. Dual Wheel Offers More Stability, Control and Balance. Strong Handles That Can Be Gripped Easily. Knee Pad Supports The Knees During Workout. Portable and Compact In Shape, Size.