Hemi Shoulder Sling, 1/EAPRODUCT FEATURES: Medium for left shoulder: For bicep circumference of 13 to 14 inches Sling effectively treats shoulder subluxation The snug fitting humeral cuff held in place by the bicep tricep belly band Three adjustable straps act similarly to deltoids to pull the humeral head into correct position and to control mobility, encouraging internal or external rotation as needed The sling is comfortable, polyurethane lining that won't slip PRODUCT