The caps look beautiful and are well made. They do not cheap. The holes of the steel wheels are exactly symmetrical with the struts. The struts bulge slightly outward. A metal ring must be inserted in a groove 2 grooves for different wheel types (flat / deep) are attached. Installation is very easy and the caps are stuck. For the price of just 18 for the 4-er set TOP! (If the caps still remain permanently where they are). 5 Stars