... : 55ºC-70ºCHandy Warmer,it has a light surface,catch only by one hand,good quality and treatment,use for many ... in open country,outdoor sport,go out for travel.it is a good to which people with physically weak,cold and Lumbago ... ,etc.when weather being cold.Medical treatment: cure women dysmenorrheal,hand&feet cold, arthrosis,etc.Product characteristic:good quality,green environmental ...