Brand: MOMO Automotive Accessories
This plate is designed by MOMO to enable easy mounting of up to 4 switches to your steering wheel without drilling into the wheel.
The rigid carbon fiber plate is just 2.5mm (3/32") thick. It is pre-drilled to match the MOMO/OMP/Sparco 6-bolt (6x70mm) pattern. The four switch tab areas are undrilled, so you can drill them to fit whatever switches you are using. The two bottom tabs are longer than the top tabs to clear down-swept spokes.
This plate should be mounted between the steering wheel and the hub. Genuine carbon fiber (not metal or plastic with a "CF" pattern printed on) with a yellow MOMO logo at the top.