●Extended Heat Duration: Enjoy up to 10 hours of continuous warmth per pack, perfect for a day of outdoor activities in cold weather. ●Air-Activated Convenience: Tear open the wrapper, and the hand warmers start working within minutes—no hassle, just instant warmth. ●Odorless Comfort: These hand warmers are odorless, ensuring a pleasant experience during use. ●Safe and Natural Ingredients: Made with natural ingredients, these hand warmers are safe for your skin and clothing, with no harmful chemicals to worry about.