Good 2 GoTM Moist Heat Pad Medium 9 x 12 Wheelchair Ramps load capacity under normal use Style:1 Pair (Left & Right) load capacity under normal use * 5 year limited warranty * Seat diameter 16 * Base diameter 24 * Height Range 19 25 H x 19 W x 19 D * NEW FOR 2018: Warranty: 4 years (1 year on applicators & accessories) * Please note: The Auto*Therm 390 and Auto*Therm 391X are the same but unlike the 390 the 391X comes with optional cart arm and inductive coil * 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