Product : Knee Patches Pack of 10 About this item: Fast Effective Moxa Heat Back Rehabilitation Therapy Supplies For Pain Knee Plaster Heat Knee Patches for Pain Relief. Relief Arthritis Knee Pain Patches Discomfort Moxa Hot Moxibustion Leg Self Heating Warming Meridians Patches Quickly relieve various pains associated with muscle strain, neck pain,rheumatic arthritis, hyperostosis, knee joint ache, tenosynovitis, strain & sprain, sciatica, fibromyalgia. (necessary for office workers, popular in hotweather and warm areas)