The Egg and Frying Pan Hand Warmer (2 units) is the ideal pack of pocket-sized thermal bags for quickly and uniquely warming your hands during winter days. This set of two gel packs activated by a metal disc uses a crystalline reaction of sodium acetate to generate instant heat with a simple click. Designed to be fully reusable, simply boil the warmers in water for 5 minutes for the solidified gel to return to a liquid state, ready to be reactivated. The creative fried egg and frying pan shapes make this duo indispensable to carry in your pockets while walking around town, traveling on public transport, or engaging in outdoor activities in the cold.