Dewhel 5cm Black Height Aluminium Steering Aluminum Spacer for Aftermarket Steering Wheel Hub Adapter Boss Kit Material: Made of aircraft grade aluminum Height: 5 cm fit Most aftermarket Steering wheels / hub adapters with a 70mm 6 hole bolt pattern (Momo, Sparco, NRG) and the 74mm 6 hole bolt pattern (Nardi, Isotta, Tekniq) Color Black In Package includes the hub adapter, 6 bolts, and an allen wrench