Maximize the security of your heavy-duty trailers with our 2 5/16″ coupler locks. Our 2 5/16″ coupler locks are engineered to fit larger trailer balls commonly used on RVs, horse trailers, equipment trailers, enclosed trailers, and large utility trailers. These robust locks ensure your trailer remains safe and secure from theft. Enjoy enhanced protection and peace of mind for your most valuable trailers. All components are interlocked, eliminating loose parts that require assembly each time you install or remove the lock. This feature makes installing and removing the lock quick and easy, requiring only one hand in as little as 10 seconds. These high-security locks are handicap friendly.