Hi Marnie,
Try looking for spray paint color bright silver. You might need body filler and sandpaper too if the curb hit is significant. My mags got some rust from the center and I used turco to remove them then appiled some body filler, sand them then apply spray paint a little at a time. Not noticable from afar but if you look closely you can still see the rust marks from the side of the center caps.
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