At my wife's insistence I purchased this cap kit to complete the protection process for our new Kodiak Cub 185MB. We parked it on wooden planks over the grass and now also covered it, I really didn't see the need for a tire cover as I would take it off at the first rays of the sun after the winter. But the woman wanted, and as they say; Happy woman happy life. These are all very easy to install, fit exactly as they should, and seem to last more than one winter in Michigan. The material feels pretty durable, almost like vinyl I would say, but not as hard.