The Mossy Oak hand warmer's are AMERICAN MADE. These lightweight pouches contain a mixture of ingredients that, when exposed to air, create an oxidation process generating heat. The Mossy Oak hand warmer's last 10 hours. They can be used in gloves, pockets and any place where soothing heat is desired. Mossy Oak hand warmers are sold 320 pairs in a case. Each case contains 8 counter top display boxes. Each display box contains 40 pair.