Cone Style Plastic Rally Centers

I got mine off eBay from Dave's Ralley Wheels or something like that. As far as durable, they have been on the car for over a year now and about 7.5k miles.

Most of those type of caps and centers on new car wheels are made of plastic and seem to hold up fine. They certainly won't stand up to being hit by something flying up off the road like an original but you buy four sets of the plastic ones for the cost of one set of die cast.