CanDo Visualizer overdoor shoulder pulley is used to increase should range of motion. Visualizer rope allows user to achieve specific pre-defined levels of ROM. It is color-coded by ROM from yellow (least) to black (most). This exerciser has both single and double pulleys for smooth and easy operation. Pulley with Door Strap is the most economical and lightweight shoulder pulley solution. Pulley with door disc anchor is a heavy-duty shoulder pulley solution. Pulley with door bracket Portable exerciser can be easily transported and fitted to most doors. 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.