20" x 57" Running Surface Active Flex Suspension QuickFit Easy Assembly System SafeDrop Folding Technology 400 lbs max. user weight capacity 0-12 mph Speed; 0-12% Incline Quick Select Keys Non-removable Safety Stop Key with lanyard and clip Accessory Tray with removable and washable water bottle holder Integrated personal cooling fan Blue backlit LCD matrix Five red Alpha-Numeric LED windows display Speed, Distance, Time, Calories, Incline, Pulse, Program Profile Graph, 1/4 Mile Track and more 12 Built in