Natural Hand Warmers - 40 Pairs (80 Warmers) - Air Activated 11 Hours of Consistent Natural Heat Handwarmers Pack - Easy Activation | Portable Hot Hands Hand Warmers Disposable Bulk, Hot Heat Pack11 HOURS OF LONG LASTING HEAT Prevent frozen fingers from interrupting your outdoor activities or workday. Whether youre at a football game, skiing down the slopes, or spending hours outside working, these heat packs for hands deliver up to 11 hours of long lasting warmth! DURABLE Tired of bulky hand warmers in gloves making them feel too tight? These disposable heat packs are designed to fit comfortably in your gloves or in pockets without adding