I use the vinyl covers sold by Camping World and other rv places. Other folks use tarps, pieces of plywood, etc. I went with the vinyl covers as they fold/roll up pretty compact so that when I'm out west during the summer, I can easily cover my tires while camped. Not hard to install and they have an elastic cord to keep it on the tire and I've never had one blow off as of yet. I have a set of white ones and a set of black ones. Black shows less dirt, but I think the white ones look better, not that it really matters.