1. Replace the missing or damaged horn button on the Nardi za steering wheel with this factory accessory. 2. Excellent carbon fiber material improves the texture of the handlebar. 3. Fits do all 6 screws do Nardi handlebars with center horn button with 2 paddle connectors on the back. 4. Simple to install, no complicated tools, convenient to use. 5. Built to standard specification, strictly follow factory quality control. Item Type: Horn Button Material: ABS carbon fiber Mounting Diameter: Approx. 50 mm/2 inches Diameter: Approx. 57mm/2,2 inch upper body, hole is 50mm/2 inch Suitable steering wheel: 6 screws do steering wheel Nardi Installation: fits do all 6 screws do Nardi handlebars with center horn button with 2 paddle connectors on the back; List of packages: 1 x Horn Button 2 x Horn Beam 6 x Screw 1 x Wrench L