Sunny Health & Fitness SF-T7514 Heavy Duty Walking Treadmill Walk off the weight and get healthy! Receive all the benefits of walking in the comfort of your own home with the SF-T7514 Heavy Duty Walking Treadmill. Build stronger bones and joints with this light impact exercise. Immediately increase your metabolism, energy, and self image while you walk. The Heavy Duty Walking Treadmill has a large walking surface offering an ample 46 inch x 20 inch space, which can handle a variety of walking gaits. The extended weight capacity will accommodate up to 350 pounds Sturdy handle bars and integrated keys control the speeds and start/ stop functions. Hand pulse sensors can track your heart rate to give a relative rate of exercise exertion. Vary your walking workouts with the 12 built-in interval programs, specifically designed to burn more calories. 3 manual incline setting can increase the muscle actions during your walking workouts