Shoulder Pulley set is a useful aid to exercise and rehabilitation. The pulley is designed to be attached to a doorway or some similar overhead structure,where it can then be used to develop strength and mobility in the users upper body,particularly the arms and shoulder joints. Simple to use and made of very robust components,the Shouder Pulley promises years of trouble free use in the home or in a professional care environment. The Shoulder Pulley is supplied as a set that comprises a door attachment, pulley, strong cord, handles. EASY TO USE SHOULDER PULLEY makes physical therapy and exercising easy, either at home or at the office. Can be used in both a sitting or standing position QUICK INSTALL: Place the strap over the door with the buckle positioned on the opposite side. Close the door tightly. Pull the strap toward you to make sure it’s locked in place and you’re ready to go PHYSICAL THERAPY DOOR PULLEY EXERCISER is great for after surgery, injuries, or strength, mobility, and flexibility INCREASE RANGE OF MOTION in all planes of shoulder after surgery, or for arthritis, tendonitis, frozen shoulder syndrome, rotator cuff injury, capsulitis, or bursitis METAL BRACKET – Included metal bracket attachment makes it easy to attach the pulley system to the top of the door. Both sides of the bracket are padded with foam or a plastic sleeve. Fits most 2 inch doors and does not cause damage