High Quality Material: Made from high quality, durable metal materials, our key switch is heat resistant, waterproof and built to last. This ensures that your ignition switch will last longer and provide reliable performance when you need it most. Easy Installation: Our 12V 19mm ignition switch is designed for simple and easy assembly. With a simple installation process that requires no complicated steps, this switch is perfect for anyone who needs to replace their old ignition switch. It fits perfectly into 19mm diameter plate holes. Perfect Size: Measuring 5.5cm long and 3.5cm in diameter, our on off button can be easily installed on boats, vehicles and other machines. It also features a reliable ignition lock mechanism for added safety. 3 Functions: Our universal 12V engine start switch has three functions: ON, OFF and Start. It also comes with two keys for a better user experience, making it easy to use and operate. Wide Application: This keyed ignition switch can start 12V vehicle engines and is commonly used in cars, motorcycles, boats, trailers and other vehicles that require ignition switch replacement. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.