Grabber Large 10+ Hour Hand Warmer (120 Pair Display Drawer) 120 Pair drawer display can be placed on a counter or hung as a power wing. Air-Activated Instant Heat Large Hand Warmers (3" x 3") lasting 10 plus hours. Grabber Hand Warmers are a non-toxic, environmentally friendly, odorless heat source using all natural ingredients that are non-combustible. Average temperature 135 degrees F (57 degrees C), Maximum temperature 156 degrees F (69 degrees C). To Use: Simply open the outer package and expose the packet to air. No shaking is necessary. For best results, use Hand Warmers in an enclosed area with air such as a pocket or glove.