The Quad Zone ATV Clamp-On Heated Grip kit was designed to keep your hands and thumbs warm while riding or working in cold weather, with an easy-to-install grip and thumb warmer kit. Our innovative design let's you control the amount of heat you desire with the Quad Zone controller. The controller has multiple mounting options, adjustable LEDs for day or night operation and will shut off automatically after two hours to save your battery life. With the Quad Zone controller, you can power a heated seat, heated vest, or heated boot insole-inserts independently from the grips and thumb warmer.