Feature 1Waterproof, Dustproof, Oilproof: Made of good quality ABS plastic material, waterproof, dustproof, oilproof, etc. 2Prevent Loosening and Falling: Trailer coupling guard sits firmly on the ball head, with a screw knob to prevent loosening and falling 3Replacing Old Cover: Tow bar ball cap works for replacing your old trailer coupling cover, very practical 4Protective Cover: Trailer hitch ball protective cover is applicable to trucks, semi trailers, cars, ships, etc. 5Long Service Life: Tow bar ball cap come with stable structure, excellent performance and long service lifeItem Type: Tow Bar Ball CapApplication: Trailer hitch ball protective cover for trucks, semi trailers, cars, ships, etc. .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Tow Bar Ball Cap