Get a more efficient workout in a fraction of the time with the Self Generated Curved Treadmill from SB Fitness Equipment. No boring, mindless workouts or subconsciously going through the motions just to check off your cardio workout for the day. It'll take every conceivable effort you can give, both mentally and physically, if you want to go toe to toe with this treadmill. With 3 levels of resistance, this self-powered treadmill is going to tax your body and help you become stronger with each level. A front digital display shows speed, time, distance, calories, and total miles of use while you move. Side handrails help you balance and help keep you stable while the belt is stopping. This self-generated treadmill immediately adjusts to speed changes and has no maximum speed, making it ideal for running, walking, HIIT, or sprinting. A curved design activates all the same muscles as running outside and offers a much more natural curve without the impact on ankles, knees, and hip joints. With all the benefits of running outside, the Self Generated Curved Treadmill from SB Fitness Equipment offers an efficient workout in the comfort of your home.