When Mother Nature gives you the cold shoulder you’ll be ready with this 10-pack of Hot Hands Super Warmers. Larger and longer-lasting than standard hand warmers, they provide continuous heat for up to 18 hours, keep you going through the coldest day on the job (or perhaps a nice day off of ice fishing). Ready to use, they’re air activated - just open the package, shake and drop into your boot or mitten. Heading inside? Just slip them into a resealable bag, squeeze out the air and you stop the reaction to preserve the warming power until you need it next. Your get 10 warmers to get you through the longest cold snap.