The multipurpose Snug-Tite2 Lock is a perfect security upgrade for locking Thule hitch-mounted bike racks to your receiver. Designed with Kryptonite to combine anti-wobble with locking security. Keeps hitch-mounted bike racks stable and safe. Weatherdust cover keeps lock clean and dry. Thule lock core with One Key System (lock included) allows for one key for your entire rack system. Note: Thule hitch-mount bike racks will not lock with traditional locking tow-bar pins. Please consult the Thule Fit Guide to match the correct Thule parts with your vehicle. 91021883994 19650600017 STL2