The RangeMaster EconoRanger shoulder pulley is an affordable overdoor shoulder pulley. The EconoRanger is great for recovery and rehabilitation after surgery or injuries and for improving strength and mobility. RangeMaster shoulder pulleys help enhance the range of motion for people suffering from shoulder pain caused by arthritis, tendonitis, frozen shoulder syndrome, rotator cuff injury, bursitis and other impingement issues. We've been making RangeMaster Shoulder Pulleys since 1990. We've served more than a million shoulder patients.