I bought this to cover the hitch ball when stowing the hitch. I know it sounds counterintuitive, but I'm tired of lubricating the hitch ball and then putting the grease on myself when I take the hitch off my truck. I can put this cover on before I remove the hitch and just remove it when I want to hitch a trailer. He keeps the fat on the ball, not on me. It fits snug enough that even if I exit the clutch and cover the ball, it doesn't blow away while I'm moving. At the same time, it is quite easy to remove (due to lubrication, no doubt).