Battle Creeks largest sized heating pad is a generous 14 x 27 inch unit, nearly twice the size of most standard heating pads. Finally, a product that provides an area of heat therapy large enough to cover the entire spinal area, the length of a hip and leg or all across both shoulders, to effectively relieve pain and relax all the associated muscles, not just one small, isolated point. This Thermophore MaxHEAT Moist Heat Pack produces intense moist heat without adding water. It has a new design with a simple one-touch control that features an auto-off timer. Turns off automatically after 25 minutes. Max temp: The pads cans run between 150 to 165 degrees F. Fast-acting therapy relieves pain and stiffness for hours.