SIZE CHOOSEDouHeal Arm Immobilizer Sling has Children size and Adult size, fits left or right shoulder/arm and is adjustable. PREMIUM QUALITYDouHeal Arm Sling is made of the high quality materials and exquisite workmanship. It is very breathable with excellent ventilation. When wearing it, you will not feel hot. Light, skin-friendly and comfortable sponge sleeve and unique sponge sling bring you comfort in continuous use. RELIEVE PAINOur Shoulder Sling is with unique design, and it allocates weight over both your shoulders, which makes you more comfortable than a traditional one. It helps to relieve your pain better and provides the perfect fixation after care and treatment for your injuries, including any joint dislocation in your entire arm, shoulder injury, or humerus issue. You can wear it at home, work or sleep, which is for household use. EASY TO USE & PERFECT FITThis ergonomic Arm Slings is for either left or right arm. Open design makes wearing easier. The adjustable crossing sling can lift the scapular and make the forearm fix in the functional position. The chest arm fixation belt can prevent the shoulder from swinging and outreaching and can be fixed firmly to avoid added injury and help better rehabilitation. 100% MONEY BACK GUARANTEEWe truly want you to try our Shoulder Immobilizer Sling and our professional customer service will do whatever it takes to ensure your satisfaction. If you are not 100% satisfied, contact us, and we will offer you a 12 month guarantee