2PCS L Size Copper Knee Brace For Arthritis Pain Support Knee Sleeve Compression Sports Knee Pads Wrap Volleyball Knee Joint|Elbow & Knee Pads 60% copper fiber cloth+32%Nylon+6%spandex. Length: 33cm Upper port length: 17cm Suitable for leg circumference: 42-48cm High copper content .Help relieve swelling and muscle soreness; The copper Knee Sleeves adopts a new type of 3D weaving technology, and is easy to dry, air-permeable and sweat-absorbing. Ergonomically designed copper knee Brace, with the best compression technology, can achieve comprehensive protection. Slow shock and decompression, disperse knee pressure, improve blood circulation, protect knee from injury. Designed for everyday use and outdoor activities- It can help you recover faster, Help relieve arthritis knee pain. Enjoy the fun of sports It is ideal for work that requires regular knee use, such as mountaineering, running, ball sports, cycling, and Gym exercise(including the elderly). Package Included: 1 Pair(2pcs) x Knee Support