OverviewWhen your hands are just too chilly to contemplate and you wish you could be tucked up in bed with a hot water bottle, you can! These Novelty Mini Hot Water Bottle Hand Warmers are a great way to have toasty hands. And they are so easy to use, simply snap the disc to set off a chemical reaction within the warmers. This will turn the gel in to a pocket full of warmth! A great idea if you're waiting for a bus or a train (because they're always late), hiking or shuffling around town on a freezing cold day. These are reusable by popping them into a pan of simmering water, then they will be ready to use again once the filling goes clear.