Clarifications and features: * For the use of obese patients. * Large frame design to provide a wider and deeper space to accommodate individuals up to 500 lbs. * Precise design provides extra strength while adding small weight. * Height adjustable W144 treadmill: 32.5 to 39.5 with 5 wheels. * Height adjustable W145 treadmill: 25.5 to 32.5 with 5 wheels.