8Pcs Truck Tow Ball Cover 50mm Strong Protection Soft Rugged Trailer Hitch Ball Cover for RV Caravan Yellow 1Wide Applications: Trailer hitch ball protective cover has a wide range of applications and is suitable for RV, Caravan, Truck, Boat Trailer Ball Cover, Tow Bar Cover, PVC Ball Cover. 2Protect the Hitch Ball: The trailer tow bar ball cap completely covers and protects the trailer hitch ball from outside impacts and damage. It effectively prevents the hitch ball from rust and wear, prolonging its service life. 3Prevent Scratching Vehicle: The Trailer towing hitch ball cover is made of soft material that prevents the hitch ball from causing scratches and damages when it comes in contact with the vehicle. 4Simple and Easy to Use: Simple design, easy and quick to install and remove, the user just needs to put it on the hook ball. It is suitable for various standard sizes of hook balls, with universality. 5Highly Durable: The trailer tow bar ball cap cover is made of durable materials with high durability to withstand long hours of use and a variety of harsh environmental conditions.