I have 5 ProComp Extreme wheels. 17x9 with 4.5" of back spacing.
Used them when I had the ProComp 6" lift on my truck.
The wheels are all still in great shape. No bends nicks or scratched.
The chrome has some form of surface stuff on it. I tried to clean it off as best I could but it has a rough texture to it.
Asking $300. These wheels were initially $250 each.
The wheels have since changed the center caps. They originally came with the metal center and plastic cap. They are now one solid piece if buyer wants a replacement from 4wheel Parts.