What is the Physio Room.com Left Shoulder Support? Great value shoulder support provides therapeutic heat & shoulder pain relief following frozen shoulder, dislocated shoulder, broken collar bone, Rotator Cuff & Acromio-Clavicular injuries. Also available for the Right Shoulder. When can I use it? Anytime for therapeutic heat & shoulder pain relief. To give some re-assurance to previously injured shoulders, such as frozen shoulder, dislocated shoulder, broken collar bone, Rotator Cuff & Acromio-Clavicular injuries. Which size do I need? Measure around the chest: Small/ Youth 80-90cm (32"- 35") Medium 90-100cm (35"- 39") Large 100-110cm (39"- 43") X-Large 110-120cm (43"- 47") How does it work? This support fastens comfortably around the left shoulder with the Velcro straps to provide support & re-assurance following a dislocated shoulder or injuries to the Acromio-Clavicular joint (shoulder separation). The warmth provided by the neoprene support can be very therapeutic for those people who have Frozen Shoulder, shoulder bursitis or ' Impingement Syndrome'. The compression & warmth can also provide pain relief following shoulder surgery, or following a broken Collar bone.