Grabber Mega Warmer is a portable, everyday heat source you can take anywhere! Just open the package and within minutes the Mega Warmer will keep you warm for over 12 hours. It's dry, clean, odorless, non-toxic and non-flammable. When the Mega Warmer has done its job, just throw it away. Great for pockets, in a Grabber Sleeping Bag Pouch, or as refills for any Grabber Cozy Muff or Grabber Stadium Seat. | Grabber Warmers Mega Hand Warmer in White