Heating Pad, Electric Heat Pad for Back Pain and Cramps Relief - Electric Fast. nnFeatures: n--Perfect Size12' x 24' The perfect size heating pad, perfect for treating sore muscles in your back, neck, shoulders, abdomen, legs, arms and so on.n--Fast HeatingThe product has 6 adjustment levels and a fast heating function. The temperature range is from 40 to 60104to140.the temperature of any part of heating pad exceeds 60 C / 140 F, the heating pad will automatically shut off immediately to ensure safety.n--Auto Shut Off Function6 optional heat settings With timer function provides 4 timer auto shut off range from 30 to 120min, conserves energy and prevents burns caused by excessive heating which is very safe and energy saving.n--Skin-friendly fabric & Machine Washable High-quality flannel, soft material and better insulation effects. Disconnect the cable connection and machine wash below 30 C is applicable. Keep the heating pad simple and easy to clean.n--Use with confiden.