I see how it is This is the place I got the trim rings from
http://www.mooneyesusa.com/, you could always get the center caps as well. I used info that PMARTE had passed along to me concerning what part number to order for the rings. You might want to contact them and just pose the question about which opts you have that work with the trim rings to finish the wheel. Mine were for 16" steelies., but when I ordered them about a month and a half ago they only had 10 in stock. You may have to buy them elsewhere. I'm sure there are quite a few companies that carry them.