1) Comfortable surface 2) Double safety control when temperature reaches 70 degrees 3) Water inside can be used forever Specification:Electric hot water bag, hot sale in Italy, Spain, Korea and some other countries, new design. Electric Warmer Bag is made of soft clothIt could be warm hand ,foot ,Waist and shoulder.It is 220V-50Hz, 500WAuto Temperature control for safetyAuto swith off when ...