Trimax Umax50 Premium Die-Cast Dual Purpose Coupler Lock

360 degrees of solid steel protection against trailer theft. The UMAX50 is constructed of solid hardened steel and fits most coupler sizes (1 7/8" to 2 5/16"). A 5/8" (16mm) hardened steel shackle helps ensure your trailer is secure, even when left unattended. It has a patented dual locking system and a rust proof hammer tone epoxy finish for extra security. One size fits all coupler types Dual ratchet lock system Exclusive design provides 360 degrees of hardened steel protection Key hole cover keeps out dirt Rust proof hammer tone epoxy finish Hardened 5/8" steel shackle