The Celsius solid fuel sticks make it easy to fight against frostbite and they make a good choice for outdoorsmen. They're convenient, easy to use and are designed to work with the Celsius hand warmer. This product provides heat and comfort for hands on cold days spent outdoors camping, hiking, fishing, boating and more. These hand warmer fuel sticks are long-lasting, safe and odourless, making them a practical choice for that next trip out into the cold.