Features： 1、LONG LASTING DURABILITY: The gooseneck hitch lock is made of high strength metal material, providing resistance against physical attacks, rust, and harsh weather conditions. 2、PROFESSIONAL DESIGN: Carefully designed quality metal construction, the adjustable 2 pin position allows for easy customization to fit all gooseneck 2 5/16 style couplers. 3、VERSATILE COMPATIBILITY: This gooseneck trailer hitch lock is suitable for RVs, livestock carriers, and heavy duty trailers, making it a versatile security solution for a variety of trailers. 4、ENHANCED SECURITY: The gooseneck hitch lock provides an added level of security, designed to prevent theft of your trailer by securing your hitch to your vehicle. 5、WEATHER RESISTANT: Gooseneck trailer hitch lock will not rust in harsh environments, providing excellent wear and oxidation resistance for long lasting protection. Specification： Item Type: Trailer Hitch Lock Material: Metal Size: Approx. 11inx 6-1/4in x 4-1/2in (Length, width and height) Pin Diameter: 3/4 inch Fitment: Replacement for 2 5/16 inch couplers Suitable for trailers, RVs Package List： 1 x Gooseneck Trailer Lock 1 x Lock Pin 1 x Lock 2 x Keys