Grabber Ultra Warmers are warm packs designed for ''Maximum Duration''! Just open the package and within minutes you'll enjoy over 24 hours of everyday all-day warmth. It's dry clean odorless non-toxic and non-flammable. When the Ultra 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. - (1) Box of (30) pairs.