They look like chromed plastic covers. I bought a set similar for a Mini. It's plastic chrome stuff is amazing; but there are quality differences. Some will have the "chrome" wear off after several polishings whist others seem to have a life of their own. The covers look great, but remember we don't have any chrome on our cars and, other than the emblems, just the silver coated stuff. If you start adding this type of bling you'll end up blinging the grill, windshield wraparound, side vents...