There are also reusable hand warmers, you boil them to recharge. In my experience, their performance degrades to 80% output and duration after a dozen uses.
edited to remove the link to an actual re-usable hand warmer, since the only reason I can think of for a downvote is that someone thought I was shilling for some specific product or site.
There are also reusable hand warmers, you boil them to recharge. In my experience, their performance degrades to 80% output and duration after a dozen uses.
edited to remove the link to an actual re-usable hand warmer, since the only reason I can think of for a downvote is that someone thought I was shilling for some specific product or site.