The BlueRanger shoulder pulley is an affordable over-door pulley that helps eliminate your shoulder pain. Simple and effective, this shoulder pulley system enhances your range of motion and improves strength and mobility. Perfect for exercises and rehabilitation from an injury or surgery. Highly recommended by physical therapists, the BlueRanger helps if you are suffering from arthritis, tendonitis, frozen shoulder syndrome, rotator cuff injury, bursitis and other impingement issues. Contains a custom designed pulley with a zinc-coated metal housing that will not melt or deform over time. Features cleated handles and a non-slip nylon web strap that fits over the top of any closed door.