Feature: 100% brand new and high quality. Quantity: 1 Material:plastic+alloy DC:12V Easy Installation and Easy Operation Dimensions: Outer Diameter for the ring - 3.7 cm (Dia) / 1.46 inch (Dia) Inter Diameter for the hole - 3.0cm (Dia) / 1.18 inch (Dia) The same size as for a standard Cigarette Lighter Slot This universal engine starter switch allows for installation on any vehicle. it comes from and security, relaxation box, through the connector to push the start button Fitment: Fit for all vehicles Great for any custom location you would like to place into your vehicle Also works with car that have auto start car alarm or turbo timer Alloy Chromed Bezels The highly bright blue illumination allows for easy nighttime visibility To Start Engine: Use your key to turn the ignition key on. Press the installed switch to start engine. Release as soon as the engine fires Package Include: 1xPush Start Button 1xFitting Ring 1xInstruction Manual