steal the kid next doors basket ball, you know the one he slams up against the garage wall while you are trying to watch bass'n university. Take a sharp Knife and' following the lines' cut about a quarter of the rubber cover out. Now what you got is a Cover that will slip right over your trolling motor prop and cushion your cover thereby extending it's life. Now if I can find someone who can tell me how to tell if my triton trailer oil wheel bearings are full or not. They have been to dark to see a level since day one.