Slide these compression supports onto knee or elbow and feel their instant protective warmth. Stretch fabric, infused with conductive copper threads, generates natural, invisible heat. Helps to reduce pain by delivering proteins, nutrients and oxygen to the affected area. Improve joint movement caused by injury, arthritis or surgery. Pair knee supports S-M L26 xW15, L-XL L27 xW16cm. Pair elbow supports, S-M L24 xW12, L-XL L25 xW13cm. 70% polyester, 20% copper threads, 10% elastane. Washable.