Flamingo Bi-axel Hinged Knee Brace is made of elastic fibers for a comfortable fit and can adjust the mobility of the knee joint. Circular hole for latching kneecap. The fibers are breathable and do not cause any allergies or irritation. Brace has straps to help you adjust the size and amount of pressure. It is used after knee joint operations. It relieves pain from arthritis, for relieving knee joints and for support therapy of knee arthritis.