Designed for the South Korean Military, and trusted by the Olympians of the 2018 Winter Olympics, MyHot Hand Warmers will help with keeping you protected in the toughest of cold weather conditions. Keep them on hand during tailgating before the game, walking the dog in the early morning hours, skiing down the slopes, hunting, ice fishing, and/or anywhere you would need a quick heat-me-up. It would also be a great idea to keep some sealed MyHot hand warmer packets in your purse, backpack, or vehicle so that you have them in case of emergencies. 1 pack of 10 air-activated Hand Warmers will keep you and your crew warm for hours. Each Hand Warmer will last up to 8 hours! All you’ll need to do is open the package and give it a few light shakes to activate the warmth. These are not reusable, one-time use only. MyHot Hand Warmers have been re-packaged for your convenience. Our goal is to provide safe, comfortable, and trustworthy Hand warmers. These warmers provide safe, natural heat so that you can enjoy the great outdoors during the harsh winter months. Max temp: 158F (70 C)