I purchased these as a Christmas gift for a dear friend of mine who lives in Roanoke, VA. She is elderly and has arthritis in her hands. She has discovered when she uses these her hands hurt a lot less! A tip for somone who wants to use these indoors, not just inside you gloves! put the hand warmer in the palm of your hand and put saran around it to hold it in place. This works!! and your hands will hurt a lot less!!
The Wicked Good hand warmers were recommended to me at a new Scout parent meeting before our first winter camp. I put two of these in a sock at the bottom of my sleeping bag and was warm all night! I will never go to winter camp without them.
I bought these for my 17 year old son whose hands are always cold, not anymore - he loves them!!! They stay warm for 7 hours just like the package says!