Change the way you build your cardiovascular fitness with the Sunny Health & Fitness SF-T7724 Energy Flex Motorized Treadmill. Run-on the space-saving running deck (51.5L x 18W inches) that is equipped with a responsive shock absorption system. The cushioned belt on the flex treadmill absorbs impact on each step, which can reduce stress on your lower-body joints as you exercise. Designed for both walking and running, this indoor treadmill can achieve speeds between 0.6mph and 10 mph. Control your workout intensity with 15 levels of automati