I recently got some at a Big 5 sporting goods store, they are sold as hand or body warmers........the package said they were good for 20 hours, but Joy said the packs worked for about 40 hours. they were about 1.50 each and I used two of them in the box I sent to Joy.Originally posted by TypeO-
Does anyone know a store where I can get these without having to buy them over the net??