Ships from Hong Kong. Made of 71% nylon, 21% rubber, 8% high stretch yarn, this knee sleeve offers sturdiness and stability to your knees with a snug fit and helps to reduce knee pain symptoms and swelling. It helps improve your performance with better muscle support and muscle efficiency, also improves blood circulation, ventilation and reduce the possibility of injury Dimension: M size. Fit for knee width 36~48cm. Sales with 1pcs.