HIGH QUALITY MATERIALS: The trailer ball cover is made of high-quality plastic materials, waterproof, moisture-proof, tear-resistant, wear-resistant and corrosion-resistant, wear-resistant and anti-aging, can prevent the towing ball from rusting and scratch, and is durable. EASY TO INSTALL: The tow ball cover can protect your trailer hitch ball when not in use, easy to use, easy to install and remove, no additional tools are needed, It can be firmly attached to the ball of the trailer by simply pushing it upwards. COMPLETE PROTECTION: The trailer hitch of the car will be protected to prevent corrosion or damage of the hitch, and extend the life of the hitch ball and trailer connection. The tow ball protector can also be used as a small bumper when parking, so you can wash your car with confidence. WIDE RANGE OF APPLICATIONS: This trailer ball cap is suitable for all conventional car hitches, trucks, campers, semi-trailers, container trucks, trailers, cars, ships etc.