The HotRox Electronic Handwarmer by Energon is a great way of keeping warm. If you don't like the idea of fiddling with lighter fluid and matches then this is the easy to use hand warmer for you.
Being electronic it can be charged up by your computer or the mains with the accessories supplied as standard (you can even get a car charger)
It is totally flexible, you can turn it on and off as you wish, adjust the heat between two settings and re-charge it up to 500 times. It will last up to 6hrs on the medium setting and 4hrs on the high setting when used with its bag.
It really is a very friendly and clever pocket sized device.
Great for the cold commute to work or school, sports like golf, walking and shooting and is additionally helpful for the the old and the infirm requiring gentle heat (consult your doctor before use).
The HotRox handwarmer is great as a gift as it comes in a very nice presentation box.