You are buying 4 dog dish hubcaps that were used specifically on 1949 to 1955 Buicks with 15" steel wheels. YOU MUST MUST MUST have 5 METAL clips on your wheel to use these. Caps measure 9 3/4" across the back, inner clip to inner clip. 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. Thank you for viewing my listing.