You are buying the 2 bolt on center caps pictured which were used on some 1996 to 1999 GMC 3500 models with 8 lug wheels as pictured. Caps are in daily driver condition and will fit fine, but must be bolted on. 8 plastic lug nuts are needed for each cap and they are NOT INCLUDED--YOU MUST SUPPLY THEM! There is a good chance some of them are still attached to your wheel from when the old cap broke off so check there first. If you have any questions just ask. 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.