I bought these for my truck as they add detail that I can see but not too noticeable. If you don't shoot guns and don't waste brass then you're going to need them, but if you have brass just make your own. This is just a used body with a plastic valve stem cover glued in place. I don't think they'll last all winter with all the mugcloride they're putting on the streets, I'll just make my own when they wear out.