Imported long-lasting heating coil, Power Required in Volts is 240V 4 layers of insulation on either side for complete comfort and safety In-built twin thermostat for 100 percent safety Ultra soft washable cotton cover, Sub Type: Portable Velcro strap-on belt, Number of Temperature Settings: 3, Used for Backaches, Sprains, Muscular & Joint Pains, Abscesses Three convenient sizes Flexible-can be used on any afflicted area