The New York Chain is a high security lock with an innovative oval crossbar disc lock, designed to defeat thieves' maximum attacks.Security Rating: 9 out of 10Includes three stainless steel keys: two standard "I" keys and one LED lighted key$3,500 anti-theft protection offer free for one year (registration required; option for up to 3 years total)12mm six-sided chain links made out of 3t manganese steel14mm hardened MAX-Performance steel shackleHardened double deadbolt design provides protection against twist attacksPatented hardened oval crossbar designItem SpecificationsBracket IncudednoLength170cmLock StyleChain,Keyed Kryptonite New York Chain Locks Chain Lock UPC: 720018999522