The Mueller® Hinged Knee Brace offers support to weak, injured, or arthritic joints and also helps prevent mediolateral movement of the knee. Fits either knee. - The metal triaxial hinge allows for unrestricted natural movement - Sectional design and adjustable straps provide a custom fit - Open patella helps prevent slippage - Open back eliminates bunching - Helps prevent hyperextension of the knee Instructions: • Loosen all straps. • Align patella opening over your kneecap. • Fasten bottom section. • Fasten top section. • Secure bottom strap. • Secure top strap. Care: Hand wash in cold water with mild detergent. Do not use bleach or fabric softener. Rinse thoroughly and air dry. Caution: Constructed of a neoprene blend which may cause skin irritations. If a rash develops or pain persists, discontinue use and consult a physician. Not made with natural rubber latex. Product Numbers: 53138, 53137, 53139 Sizing: Measure circumference of the knee SM/MD: 9-14 in/22.9-35.6 cm MD/LG (One size fits most): 12-20 in/30.5-50.8 cm LG/XL: