12% Auto Incline Treadmill: Winfita treadmill with incline features 12 levels of automatic incline adjustment, effortlessly simulating various outdoor terrains to burn more calories, improve cardiopulmonary function and enhance endurance. Suitable for anyone from beginners to experienced runners. 8.0 MPH Speed & 300 LB Capacity: Powered by a quiet 3.5 HP brushless motor, this treadmill for home provides sufficient and lasting power for your workouts effortlessly, reaching speeds of up to 8.0 MPH. The main frame is constructed with premium thickened alloy steel, it's easy to support users up to 300 lbs.