The Pro Form 720 ZLE elliptical cross trainer is perfect for anyone who wants to burn calories, tone the muscles & reach the fitness targets faster. It features 41, 46 & 51cm adjustable stride length & is equipped with a 12cm backlit display that provides an impressive selection of 18 workouts with target (9 performance & 9 calories). This solid machine is i Fit Live compatible (module sold separatly), has a friction-free 10kg (Crank Inertia of 54.052kg/cm-square) cast iron flywheel & offers 16 digitally controlled levels of resistance to ensure versatile & challenging workouts. The heart rate with the machine can be easily checked through the Pulse Dual-Grip EKG Heart Rate Monitor & compatible Polar chest strap.