Our company can supply ; - Using Heating Fiber - Duration 2-8 Hr (Maxium) - Protecting against the cold:AA Battery 3-4EA, Inner Temperatue Celcius 40 degree USD 15.00 - Inner Skin :AA Battery 2-3 EA (2 EA 40 degree, 3EA 50 degree) USD 3.00 (Packing, Battery Case Option) Size :Large,Medium, Small(Man, Woman,Children) |