First Use: Bend the metal sheet, The material in the metal sheet chemically reacts with the liquid, solidify and generates heat to warm your hands.
Reusable: Put the magic hand warmer in hot water for minutes untill the inside solid changes to liquid. just bend the metal sheet when you need it use the warmer again.
Portable: The hand warmer just 4.3 x 2.4 inch, can be put in any pocket or jacket pocket.
Keep Warm for 30 Minutes: Provides warm hands with a temperature of about 45 degrees for 30 minutes.
Perfect Gift: The perfect gift for your family or friends in the cold winter. They will never feel cold this winter.