A heating pad has a firm yet soft fabric which makes it comfortable and easy to use You can also mold it to fit your specific body shape This feature is ideal for curvy areas of your body like neck, shoulders, and knees Electric heating pad provides soothing heat therapy and has an easy slide controller specifically designed for arthritis sufferers Three heat settings so you can customize the intensity of heat. If you have used the pad for longer than 2 hours, the Auto Off function has been activated