The Masterlock 8205DPS Quantum Cable Lock is a perfect solution for protecting your bicycle, ATV, or other valuables against theft. Its smart design integrates the cable and lock into a single unit. The braided steel cable is 9/16-inch thick and has a polymer coating, making it highly resistant to cutting and sawing. The lock has a heat-treated core and is virtually impossible to pick for enhanced security. The integrated cuff-lock is three-inches in diameter, large enough to lock around bicycle frames, sign posts, and parking meters. In addition, the lock secures without a key for quick and easy locking convenience. The set is covered with a limited lifetime warranty.Expires Dec 18, 2010