Fits all ATV makes and models with a 7/8″ handlebar Two (2) heated clamp-on grips and one (1) adhesive-backed silicone thumb warmer Dual-Zone Controller – select your thumb and grip heat levels separately Maximum 45 watts (20 per grip, 5 per thumb warmer) at 14 volts Kit includes everything needed for simple installation The Dual 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. Our innovative design let’s you independently control the amount of heat you desire for the grips and thumb warmer with the Dual Zone controller. The control unit has multiple mounting options, adjustable LEDs for day or night operation and will shut off automatically after two hours to save your battery life.