The (2) 4x100 to 4x4.5 Wheel Adapter is a set of 4 high-quality T6-6061 billet aluminum spacers designed for easy installation on vehicles with a 4x100mm bolt pattern. These silver adapters feature a 15mm thickness and a CNC machined polished aluminum finish, ensuring durability and a sleek appearance. With a hub bore of 71mm and a lug pattern of 4 lugs, these wheel spacers are compatible with various vehicles like Honda and BMW models. Backed by a 1-year manufacturer warranty and free 30-day returns, these adapters are a reliable and convenient solution for upgrading your wheels.