Andy I think you are thinking of the heatpacs that we used to have when I was a kid called HOTSHOTS.they are little heat pacs that fit into your gloves or boots.The ones I am talking about are Perma Gel.You can use it as a heat pac or cold pac.by throwing it in the freezer. It is made by micro ban.Approx.size of the bag is 6"by 6"So I was reading the earlier reply and it seems you guys are talking about the hotshots.Not these ones.
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