Bowflex TreadClimber TC20 Top-of-the-line 3-in-1 cardio machine that combines best attributes of treadmill, stair climber, and elliptical Burns up to 3.5 times the calories in the same amount of time as other cardio machines Low-impact workout is easy on the joints, with low "perceived exertion"; 2 user profiles Backlit LCD display tracks speed, time, distance, calories, and HR; 0.5 to 4.5 mph speed range 300-pound capacity; measures 31.5 x 55.25 x 55 inches (W x H x D); 3-year warranty