Great for glove compartment or backpack
There are plenty of pads that you can microwave, but unless there is a way to heat it up, they can't be used.  This item can be stored and used without a heating source.  Just click the disc and it heats up.<br />Boiling water is needed to reset the item for use and it takes quite some time, but that could be done to prepare it for another use.
Rating: 4 stars