Please comment before purchasing. Please refrain from purchasing if you are in Hokkaido, Okinawa, or other remote islands. Super Hot Disposable Hand Warmers Magma Product Description: These are non-adhesive hand warmers that heat up immediately upon opening. They generate high heat for approximately 12 hours. Even outdoors in winter, you can warm your hands quickly, and the hand warmers will stay hot, providing ample warmth. Large pack of 30 pieces x 8 sets. Ingredients: Iron powder, water, activated carbon, absorbent resin, vermiculite, salt #Magma #Non-adhesive #Hot #HandWarmers