... but reusable 3. will not frozen in freezer and keep in gel [Application range]: 1. Bruises, muscle aches and sprains, toothache, headache, calenture, ... comfortable.4. No need refrigerated storage and the transportation is convenient. Easily stores in 1st aid kit, gym bag, back pack, travel ... such as forehead, eyes, arms, neck, armpits, groin, legs and feet.[For reusable use](Can be used for maximum 10 ...