Lasts a long time!
Verified Buyer Reviewed by Lisa the cold natured from Greenville, SC on Wednesday, December 5, 2012
I have been using these hand warmers for many years. If I am going to be outside in the cold for any length of time I take them with me. Granted, I live in the south so we don't get that many days that these are needed but it is great to have them when we do. All you have to do is open the package, shake a little to let air hit it and you have instant heat for several hours. I do wish it could last a little bit longer - like forever but they do last the time that is listed.
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