All steel, raw wheel. Image shown is 17x8. Note: 18" wheels DO NOT have windows as seen in the 17". Outside nubs for caps on 5-lug wheels measure 10 1/8", nubs on 6-lug wheels measure 11 5/8". Additional 6 & 8-lug options for this wheel style are available on our Truck tab. Image shown with custom black powder coat, trim ring, and hubcap, not included. Ability to add custom powder coat for $35/wheel once a part selection has been made. Lug nuts not included. Please check proper fitment before mounting.