Product Description FEATURES of the Thule Snug Tite Lock Includes 1 One-Key lock cylinder. Amazon.com The Thule STL Snug Tite Lock combines an anti-wobble feature with locking security. This locking security system fits both two-inch and 1.25-inch Thule hitch carriers, and includes both the locking cylinder and a set of keys, one locking key and one changing key. The Thule STL is the perfect compliment to your Thule hitch carrier, and helps ensure your valuable bicycle or bicycles stay safe and secure, right where you need them. What's in the Box? STL Snug Tite Lock, a lock cylinder, a locking key, a change key, a hitch-pin assembly, an M12 washer, an M12 lock washer, and instruction guide Manufacturer's Warranty Limited lifetime warranty