here are 2 height levels: fully elevated and ground level. Semi automatic, convenient and easy for one rescuer to operate. Independently operated legs for ease of loading. Stretcher legs locked into position to secure unit during patients’ transportation. Collapsible side rails to facilitate placement of patient onto the stretcher. There are 2 stationary and 2 swivel wheels. Comes complete with front/back locking system. Including two restraint belts to secure the patient during transport.