Features 1. Features a barbell design with a 5/8 inch diameter pin to fit Class III/IV 2 inch x 2 inch and Class V 2-1/2 inch x 2-1/2 inch receivers. 2. Helps lock your trailer securely and prevents theft of your towing hitch. Includes two keys for added convenience. 3. Upgraded aluminum alloy plum blossom lock core provides advanced anti-theft technology for enhanced security. 4. 1/4-turn lock activation allows for easy locking and unlocking without the need for drilling or mounting modifications. 5. Watertight dust cap protects the keyhole from water and dirt, helping prevent rust and corrosion. 6. Constructed from heavy-duty iron for superior strength, with a black finish to improve wear resistance and rust resistance. 7. Durable hitch lock designed for use with RVs and trailers, securely attaching your tow ball mount to your tow bar. Specification Item Type: Trailer Lock Material: Iron Diameter: 5/8 inch (1.6 cm) Fitment: Universal for trailers and RVs This locking hitch pin helps keep your equipment secure and deters unauthorized removal of accessories such as bike carriers from the hitch. Hitch locks allow you to secure your ball mount into your trailer hitch, preventing theft and accidental detachment. Features a smooth barbell locking mechanism with a watertight dust cap to protect against the elements and corrosion. Easy to install with no drilling required. The 1/4-turn lock key provides reliable security on both the vehicle and trailer sides. Enjoy peace of mind knowing your trailer and equipment are safely attached and protected from theft. How to Use: Plug and play Package List 1 x Trailer Lock 2 x Key