The Fisura "I'm Hot" hand warmer is the perfect portable heat solution to keep your fingers warm comfortably and conveniently on the coldest days. Weighing just 70 grams and made with safe sodium acetate, water, and PVP, this reusable gel pack activates with a click on the metal disc, raising its temperature to 57°C through rapid crystallization. Once the heat dissipates, the thermal pack easily returns to its initial liquid state by boiling it in water for 5 minutes. Its bold design with the "I'm Hot" slogan makes this model an excellent choice to give as a gift or carry in your coat pockets while waiting for transport or hiking outdoors in winter.