Item Type: External Horn Button Kit Material: Acrylic + carbon fiber Application: Used for modified speakers, lights, or other electronic devices Fitment: Fits for all 6 Bolts Racing Steering Wheel, for MOMO, for OMP, for Nardi, for Sparco, for VERTEX Package List 1 x Steering Wheel Button 1 x Carbon Fiber Base 1Application: The external horn button kits is applicable for all 6 Bolts Racing Steering Wheel, for MOMO, for OMP, for Nardi, for Sparco, for VERTEX. 2Function: External horn button kits are mounted between the hub adapter and the steering wheel, can enhance your steering wheel's comfort and function. 3Modification: Can be used not only for steering wheel horn modification, but also for car lights or other electronic equipment modification to increase driving convenience. 4Material: Made of exquisite acrylic and carbon fiber materials, it is hard, resistant to wear and tear, and enhances the sporty feel of the car interior. 5Ideal Replacement: Original standard, direct replacement for the old or broken one. Built to meet standard specification, strictly follow factory quality control.