The heavy-duty Bell Watchdog 610 Combination Cable Lock with a heavy-duty 12mm-thick braided-steel core provides significantly higher cut resistance. The 6 ft. long cable is vinyl-coated to protect your bike frame finish against scratching and comes with a hook-and-loop strap to hold the cable together for storage. This lock features a 4-digit resettable combination lock. Bell also offers a free combination storage program, so if your register and ever forget your combo or need to share it with someone else, you can easily access it online. An independent lab has rated the security risk of this lock a 3 on a 5-point scale.