Material: Made of high-quality metal material, high temperature resistance, durable and waterproof, high-quality materials, extending the service life of the ignition switch. Easy to install: The universal ignition switch has a simple and elegant design, easy to install and remove without complicated steps, and fits perfectly into the panel hole with a diameter of 19mm. PERFECT SIZE: Dimensions: Length: 5.5cm/2.16in, Diameter: 3.5cm/1.37in, can be perfectly installed on your boat or vehicle. The ignition key switch is designed with a reliable ignition switch locking mechanism. 3 Functions: The 12V universal engine start switch has 3 functions and can be used as an on, off or start switch, with 2 buttons attached for a better experience. Application: This key ignition switch is used to start the vehicle's 12-volt engine and is widely used in cars, motorcycles, boats, trailers or other vehicles that need to replace the ignition switch.