1This hock joint protector provide warmness for dog's knees in cold weather. 2Reduce knee bent during injury, helpful to heal the injury due to exercise, as for the old dog, make them feel less fatigue and walk better. 3Hook and loop design: can adjust the size of joint protector, ensuring it will not over loose or over tight. 4Made from premium SBR material, which is soft, comfortable, not hurt the skin, wear resistant and reusable. 5Great for wrapping the dog's leg to cover wounds.