The most expensive warmers on the marker will cost you around $50. In general, though, you should expect to pay between $20 and $30 for a quality reusable hand warmer. Air activated warmers are much cheaper, with a price point of around one or two dollars per product. However, keep in mind that they can only be used once and therefore cost more over time. If you expect to use hand warmers on a daily basis it is much more economical to pay a little more up front and invest in a reusable hand warmer.