CanDo Visualizer overdoor shoulder pulley with single pulley and door disc anchor is used to increase should range of motion. Pulley with door disc anchor is a heavy-duty shoulder pulley solution. Visualizer rope allows user to achieve specific pre-defined levels of ROM. It is color-coded by ROM from yellow (least) to black (most). Each pulley has a swivel hook for seamless pulley action and large foam handles for comfortable grip. Extra-long rope can be used in the standing or seated position. Each exerciser comes standard with instructions pamphlet and retail packaging.