The BodyMed heating pad provides moist heat that penetrates very deep, without being wet or having to moisten a pad. It also goes up to 166 degrees Fahrenheit, so it is so nice and relaxing to lay on and works well for muscle spasms and stomach pains.
You can purchase the BodyMed heating pad in the Store. It's a little pricey, but it is so worth it. I have had it for a year and it still works as great as the day I got it.