Wastful? Maybe. Helpful? Definitely.

Verified Buyer Reviewed by Susurrus from North Dakota on Friday, February 13, 2015
Maybe it's just coincidence, but I haven't had many "duds" with the Grabber brand of hand warmers. Most last close to or longer than advertised, especially in a pocket or glove. After hiking, if they're still hot, they are wonderful therapy on the lower back or knees.

Only drawback is the waste associated with using disposable warmers, and litter when you lose one in the snow. At least the inner ingredients are relatively harmless.
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