5 Year Warranty
The Kryptonite Keeper 712 integrated chain lock features 7mm four-sided chain links made from 3t manganese steel. Patent-pending end link design secures the chain to a hardened deadbolt eliminating critical vulnerability and providing extra holding power. High-security disc-style cylinder is picked and drill-resistant; resists most common hand tools. A durable weather-resistant nylon sleeve prevents scratches to painted finishes and protects the chain against the elements.