Low-impact elliptical trainer. It provides a similar cardio, calorie-burning workout to jogging, but eliminate the risk of injury and joint stress on back, knees, ankles, and hips. Whether you're looking to stay fit or get healthy, this elliptical has you covered. Can be used under the desk at work or in the office. Lost 13 pounds in 6 months just by doing this at my desk at work. No additional working out or dieting.