Neoprene knee brace with open kneecap and spiral reinforcement stays for lateral stabilization. Soothing neoprene warmth helps keep joints flexible. Supportive steel springs stabilize and help protect the knee joint providing firm support and full range of motion. Open patella helps relieve pressure on the kneecap; while resilient sewn-in buttress helps to effectively stabilize the kneecap. Four adjustable opposing front and back straps offer controlled compression and comfortable fit for all-day wear. elps to provide moderate support in case of bursitis, tendinitis, arthritic knees, minor strains, sprains, patella problems and protection against scrapes and bumps.Open patella design relieves pressure on kneecap area. Directions:Loosen all straps.Slide the brace on.Align patella opening over kneecap.Secure two back and two front straps and adjust for comfortable fit. Caution: This product contains natural rubber latex which may cause allergic reactions. The product is constructed of a neoprene blend which may cause skin irritation. If rash appears or pain remains, stop using the product and consult a doctor. Care: Hand wash in cool water with mild detergent. Do not use bleach or fabric softener.  Rinse thoroughly and air dry. Contents: Neopren blend 80%, Nylon 15%, Metal 5%.SMMDLGXLMeasurement12 - 14 in14 - 16 in16 - 18 in18 - 20 in