Resettable Hour Meter For use with motorcycle, ATV, UTV, snowmobiles and PWC, Track the service of your vehicle's oil changes, valve adjustments, spark plugs, etc., Easy installation: peel and stick, no wiring necessary, or attach with enclosed hardware, No battery required, connects to the spark plug wire, Works on any gas engine, Will fit Moose Racing Hour Meter Mounts - see Related Products, Made in the U.S.A.