Description: Made by High Quality Plastic. Simple push on tow ball cover to fit all standard 50mm tow balls. Helps keep your tow ball free of dirt and rust . Helps to maintain grease on tow ball when used with a standard hitch. Fits all towballs including Swan neck or Bolt on tow bars. Specification: Material: Soft PVC Inner Diameter: 50mm / 2 Inch Height: approx. 55mm Color: Black Package Includes: 1 Piece Towball cap cover Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you