cold and hot pack

(1)It can be used to control and alleviate the gore and pain caused by strain, bruise, pull and burn, also can rapidly remove the pain and discomfort. It is widely used on your ankle, knee, back, shoulder, etc.
(2)It can be used in warm application in cold days.
(3)It can be used to freeze and keep fresh vegetable, fruit, beer, beverage and so on, when without cold source.