The Club Car Black Seat Back Cap is the part of the caddie that installs to the seatback portion and covers the underlying contents from being visible and getting worn down by the outside world. The inside of your seat is foam and plywood. Neither one of these things should be exposed to rain or any kind of weather for that matter. This will only accelerate the rate at which it needs to be replaced. The first thing to wear out on a seat should be the vinyl, not the internal components. If the wood rots on your Club Car accessory before your rear wears a hole in the pleather, you are storing your caddie in the wrong place. Maybe try a place dryer than the bottom of a lake.This golf cart seat back cap is usually broken during the install of another item. Most of the time, it's the rear seat because of its proximity to this plastic part. If you break it, it's not a big deal. Just call Buggies Unlimited and have a new one shipped out.