Features9mm four-sided chain links made from Kryptonite`s high-performance 3t manganese steelPatent-pending integrated KryptoLok series 2 lock head with “talon” deadboltNew, patent-pending pin-less link design secures chain to hardened deadbolt with no “weak” links NEW Patent-Pending Hybrid cylinder design provides higher levels of defense against picking while increasing its ease of use when locking and unlocking (running change) NEW key fob design (running change)Hardened deadbolt design provides additional protection against leverage attacksOptional US$1500 Anti-theft protection for 1 year; extendable for up to 2 more yearsWeather-resistant nylon sleeve Compact coiling for easy carryingIncludes 2 ergonomic “I” keysLifetime Key Registration & Key Replacement Service available-Key Safe program6/10 security rating