Hardened deadbolt design provides additional protection against leverage attacks.Security Rating: 6 out of 10Features an integrated KryptoLok series 2 lock head with a "talon" deadbolt and 9.5mm, 4-sided chain links made of 3t manganese steelHigh security disc-style cylinder is pick and drill resistant; resists most common hand toolsWeather-resistant nylon sleeve prevents scratches to painted finishes and compact coiling provides for easy carryingPin-less link design secures chain to a hardened deadbolt and offers no weak link in the chainIncludes 2 standard, stainless steel "I" keysKey Safe Program$1500 anti-theft protection offer free for one year (registration required; option for up to 3 years total)9mm four-sided chain links made from 3t manganese steel Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability Item SpecificationsBracket IncudednoLength95cmLock StyleKeyed,Chain Kryptonite Kryptolok Chain Locks Chain Lock UPC: 720018000839