THAW hand warmers are single-use, air-activated heat packs packaged in a box of 40. When opened and exposed to air, each warmer produces gentle, sustained heat for temporary personal comfort. They are commonly used by hikers, skiers, hunters, outdoor workers, and spectators at cold-weather events. Individually wrapped warmers are easy to carry and tuck into pockets, gloves, or boots. These disposable warmers require no batteries and are convenient for travel, emergency kits, and everyday cold-weather use. Follow package instructions for activation, safe use, and disposal.