The coupler lock that's built for long lasting security. Features a hardened steel shackle, double ball locking mechanism, solid brass cylinder, and a steel cover plate to help resist tampering. The 3pk Lock Kit contains 2 Quick Disconnect Padlocks and 1 Coupler Lock--All keyed alike. Now just one key will keep your Tow Bar & towed vehicle secure. Lifetime warranty. Made in U.S.A. Packaged.