Read the ingredients -- these are the same thing as other warmers you buy in pairs for a lot more money. Stock up and have warm hands any time you want them.
I've tried every super warm mitten made for skiing -- and my hands are still cold. With these hand warmers, I can ski all day in New England and still feel my finger tips. Very useful, especially when on duty outside from 8am to 4:30pm in single digit temperatures.
Works great in pockets, mitten tips, or rubber-banded onto the battery of a hand held radio/camcorder/etc. to keep everything working when it's crazy cold out.
They are worth the money if your hands get cold. When my hands get cold I have a rough time warming them up. These are great for playing in the snow inside mittens or gloves. Also great when working in the cold, like shoveling, snowblowing and such. I can't do with out them.
