BlueRanger™ Shoulder Pulley Exerciser, 1 Case of 50 Cast Removal Epi Lock features a unique patented MSHQ MENM375 Epi Lock features a unique patented 2 strap system * The strap near the elbow supports deeply buried extensors and works with the forearm strap to provide exceptional support and pain relief * The non elastic straps are worn comfortably snug * When muscular force is applied the extensors automatically enlarge causing the straps to tighten * Universal left or right * Measure forearm circumference for sizing * Fits 12 15 circumference * HCPC: NOT COVERED floral scent Hanger fits most 2 inch thick doors and is specifically designed not to cause damage Two molded plastic adjustable line length handles and a smooth nylon roller pulley