This Shoulder Pulley set is a useful aid to exercise & rehabilitation. It is designed to be attached to a doorway or some similar overhead structure, where it can then be used to develop strength & mobility in the upper body, particularly the arms & shoulder joints. Simple to use & made from very robust components, it promises years of trouble free use in the home or in a professional care environment. It comprises a door attachment, pulley, strong cord, handles & illustrated, easy to read instructions. Easy to set up & use Affordable Helps develop strength & flexibility Helps prevent or speed recovery from shoulder injuries