Arm sling Indication Sub-acromial decompressions, global shoulder instability, rotator cuff strains, shoulder dislocation/subluxation, shoulder separation, non-displaced humeral fractures Mode of Action Stabilizes shoulder complex, prevents inferior subluxation/dislocation of glenohumeral joint. Features Comfortable and adjustable straps, high quality and durable terry cloth material, easy to fit and remove due to practical velcro system, more comfortable with thumb sleeve