Good 2 GoTM Moist Heat Pad Medium 9 x 12 Recliners 5v Lithium Ion Handle with Removable Autoclavable Up to 325 5v Lithium Ion Handle with Removable AC Adapter (Model 71900) Hard Case for 3 * Easy to use system check that tests both system and battery functions Good2Go Medium 9 x 12 * Plush multi ply cover design focuses moist heat right where you need it most * Joint specific or multi use shapes for a snug secure fit * Portability convenience and economy in a reusable unit that will last for years * Patented non allergenic fill does not leak smell decay or encourage fungus growth * Fill has a special porous surface to trap the maximum amount of atmospheric moisture * Wide elastic strap holds heat snugly in place while you continue regular activities * Mitt is filled with two soft gel packs that can be heated or frozen as needed to surround your hand with either hot or cold therapy