The Blue-Ranger™ Shoulder Pulley with Door Strap is a high quality, affordable shoulder pulley with webbing door strap. The new & improved self-locking handles allow the user to easily adjust the length of the bright blue cord. The Blue-Ranger by RangeMaster has innovative molded plastic handles with a quick line length adjustment feature. On the underside of the handles is a grip for the rope that allows the user to quickly adjust the length of the blue cord line. The webbing strap easily slips over any door and the smooth nylon roller pulley is quiet and won’t vibrate during exercise. An exercise guide is included with each Blue-Ranger Shoulder Pulley with Door Strap. People with limited shoulder motion and pain will find this shoulder exercise pulley helpful for increasing shoulder motion. We recommend consulting a professional for specific shoulder exercises with this pulley. Blue-Ranger Shoulder Pulley with Door Strap Specifications: Pulley measures: 1.75 inch diameter. Door Strap measures: 7 inches long, 1 inch wide. Rope measures: 7 feet. Handles measure: 4 inches long, 1.25 inch high, 1 inch wide. Materials: Nylon pulley, nylon webbing strap, nylon rope, plastic handles.