PrePak Products web strap over-the-door shoulder pulley is used for increg and maintaining range of motion in all planes of the shoulder. The pulley has a fender to ensure the rope doesnt disengage, and is made of self-lubricating, durable nylon for eliminating squeaks, metal residue, or snags that cause rope degradation. The pulleys 86-inch rope is custom-braided to prevent fraying, flattening, or unraveling, and is marked to allow patients to gauge progress. The pulley has ergonomic, latex-free handles that are molded in the shape of a closed fist for increased comfort, and includes a full-color book with step-by-step instructions for 11 basic shoulder exercises. WHATS IN THE BOX * Shoulder pulley * Shoulder exercise book