Product details Odorless, environmentally safe heat source Provide warmth and comfort in all cold conditions Average activated temperature is 135 f (57 c) 🧤 Each hand warmer provides hours of consistent heat, perfect for extended outdoor activities. 🧤 Designed for single-use, eliminating the hassle of refilling or recharging. no need for recharging or refilling 🧤 Lightweight and easy to carry in your pockets, gloves, or hand warmer pouch, Traveling time for easy to carry it. 🧤 These hand warmers are safe for direct skin contact, making them for use inside gloves or pockets. 🧤 No need for charging(batteries or electricity) ; they start generating heat upon exposure to air
eBay