Trailer Hitch Ball is made of steel material, strong and wear resistant to ensure stability. Suitable for light and medium sized trailers, including yacht trailers, RVs, and motorcycle trailers. Equipped with a locking nut or pin to prevent accidental detachment during driving. Ball head diameter is 2 inches, designed for most trailer interfaces and easy to install. Height is 12cm, with versatile fitment for a variety of trailer needs. Package includes one trailer hitch ball. Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely for the purpose of demonstrating compatibility.