HotHands Lap Warmer - HotHands NEW and largest warmer ever is portable, packable, and ready to use! Pair it with any blanket and stay warm anywhere. HotHands, the leader in air-activated warmers, has been warming hands, feet, and bodies for over 30 years. It's a brand trusted all over the world by professional athletes, outdoor sporting enthusiasts, spectators, skiers, outdoor workers and by anyone wanting, covenient concentrated heat in cold weather conditions. When used as directed, this warmer can provide up to 8 hours of effective heat. Air-Activated, Ready to Use Up to 5 Hours of Heat Great for - Tailgating at Events, Outdoor Sports, Hunting & Fishing, Camping & Hiking