4 Billet Wheel Adapters 5 Lug 4.5" to 5 Lug 5.5" Thickness 1.25 Inch Change 4.5" vehicle bolt pattern to 5.5" wheel side pattern CNC machined from 6061 T6 aircraft quality billet Space out your wheel including pre-installed studs and mounting lug nuts Sold as a set of 4