Microwaveable Hot Pad Comes with a special cover. You can heat it in the microwave and use it right away. It's safe because it doesn't use electricity. Plus, it can also be used as a cold pack, so it's helpful to have one for various uses!! I have two more in stock besides this one. If you'd like one, please comment. Although it's new and unused, the box has some damage. Please understand and agree before purchasing.