10mm six-sided chain links made from Kryptonite’s high-performance 3t manganese steel Patent-pending integrated Evolution 4 lock head New 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 with a modular LED replaceable key fob (running change) $2250 (USD) Anti-Theft Protection offer included in the USA and Canada Weather-resistant nylon sleeves prevents scratches Compact coiling for easy carrying Includes 3 stainless steel keys: 2 “I” keys and 1 with high-intensity LED bulb for use in dark Lifetime Key Registration & Key Replacement Service available-Key Safe program 8/10 security rating