You are buying the 1 chrome center cap pictured that was used on 6 lug chrome wheels of some 1999 to 2018 GMC 3500 models.  This cap is really expensive to get from GM if you can even get them anymore! Your purchase is a legally binding contract so please read the entire description before purchasing. I will be happy to answer any questions you have but I will not accept any cancellations under any conditions.