If you want to replace the unreliable Lucas manual washer pump in your classic car with an electric washer system then you need this push button. This black push button has a chrome bezel and fits in the existing 16mm hole with no modifications. Will suit many classic cars including early Mini, MGB, Morris Minor, Austin-Healey Sprite and Midget. A cleaner looking solution to a toggle switch. Wires require soldering to the terminals on the back.