The Fisura "Cold Hands Warm Heart" hand warmer is the perfect reusable thermal accessory to combat the cold and keep your fingers warm anywhere. With a compact, flexible plastic structure filled with water and sodium acetate, this pocket-sized gel pack activates with a simple click of its inner metal disc, instantly transforming the liquid into warm crystals. To reuse the thermal pack, simply immerse it in boiling water for 5 minutes until the solution returns to its original liquid state. Its design with the inspiring phrase "Cold hands, warm heart" makes it an excellent gift option for those who suffer from cold hands on their daily commute to the office or during winter walks.