The SCIFIT Pro 1 Upper Body Bike's adjustable arm cranks, accessibility, and low starting resistance make it easy to jump on and go. The cranks can rotate both backwards and forwards for full exercise of the arms and shoulder muscles. Tall mast with sturdy platform for ground-based training Adjustable cranks Bi-directional exercise Iso-Strength safe, accommodating strength program Specification Length: 1520mm / 61in Width 760mm / 30.4in Height: 1800mm / 72in Product Weight: 180kg / 398lb Self Powered: Yes Max User Weight: 204kg / 500lb Pre-set Programs: 12 Console Type: LED Heart Rate Sensors: Polar chest strap compatible but there are no hand sensors on this model. This is a used item and comes complete with a 90 day warranty.