The Body Warmer is a convenient way to add extra warmth when doing activities in colder environments. Easy and effective, this air activated warmer is reaches an average activated temperature of 135°F. In addition, it provides long lasting warmth by delivering heat for up to 18 hours. Moreover, it is odorless and environmentally friendly. The Yaktrax® Hand & Body Warmer comes in 10 packs with 1 warmer per pack. FEATURES: Air activated 135°F average activated temperature Up to 18 hours of heat Odorless Environmentally friendly Safe to use 1 warmer per pack Model: 07329