One single 88-89 GMC C2500 / C3500 Truck factory CHROME center cap.Metal clip on back pops on with simulated allen head style lug nuts.Fits the 16", 8 lug stock steel road wheel.Correct factory metal lug nuts needed to attach to factory wheel.Single rear wheel style not a dually.Match pictures for correct replacement.This is a good used center cap with MANY deep scratches / scrapes and marks.The original finish is VERY faded and worn due to time.Oxidation and corrosion.Staining that does not polish away.Chrome finish lifting up and peeling off.Deep pitting in chrome plastic.Center emblem has scratches and is dinged uneven.On a scale from 1 to 10, it rates a "5" in condition.Buyer to pay shipping with a flat rate of $12 within the continental U.S..Elsewhere there are additional charges.Accept most methods of payment.California buyer to pay state sales tax.