Product :�Knee Patches (Pack of 10, 20, 30)About this itemFast Effective Moxa Heat Back Rehabilitation Therapy Supplies For Pain Knee Plaster Heat Knee Patches for Pain ReliefRelief Arthritis Knee Pain Patches Discomfort Moxa Hot Moxibustion Leg Self Heating Warming Meridians PatchesQuickly 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)