Ignik Resealable Multiple-Use Hand Warmers for 10 Hours of Heat Across 72 Hours, 30 Pairs

30 pairs of air-activated, high-performance biodegradable hand warmers provide up to 10 hours of heat -- can be used all at once or resealed and used in increments By resealing the hand warmers in their AirBarrier pouch, you can allocate the 10 hours of heat for multiple sessions over three days -- use on a jog or while walking the dog and reseal for use the next day Warmers are 98 percent biodegradable (contents can be composted after use); safe, comfortable heat is provided by natural minerals and oxygen Easily activated by removing from packaging and exposing to air; ideal for camping, hiking, hunting, snowshoeing, skiing, dog walking and other cold weather outings Includes 30 pairs of multiple-use hand warmers (2 per resealable package); each warmer measures 2 x 3.7 inches, and weighs 45 grams; in recyclable packaging, for more heat with less waste