Developed by a practising physical therapist in 1985, the Metron® Stretch Ranger Shoulder Pulley was the first web-strap over-the-door pulley on the market. Today it is still the market leader. A low cost, simple-to-use device, the Metron® Stretch Ranger Shoulder Pulley helps increase and maintain range of motion in all planes of shoulder motion. Used at home, it allows patients to increase the gains made in the clinic and helps speed the recovery process.