Stay comfortable in the cold outdoors with the additional warmth provided by this hand warmer. Air activated, it is designed to reach an average activated temperature of 135°F to keep your hands warm. In addition, it is capable of lasting up to 8 hours. This warmer is safe to use, environmentally friendly and odorless. With the Yaktrax® Hand Warmer, you get 10 packs of 2 warmers. FEATURES: Air activated 135°F average activated temperature Up to 8 hours of heat Odorless Environmentally friendly Safe to use 2 warmers per pack Model: 07328