The Zippo Hand Warmer is built for winter warriors that brave the cold day in and day out. The personalized Zippo hand warmer design is sleek and compact, so it fits easily into pockets, gloves and pants. Unlike other warmers, the engraved Zippo Hand Warmer is lightweight and won't add unnecessary bulk. Zippo personalized heat warmers use premium lighter fluid to produce more than 10 times the heat of other warmers. Most models of warmers carry enough fuel to last for 24 hours. Warmers come with a 1-year warranty.