Kryptonite Keeper 712 Bike Chain Lock, 4 Feet Long Heavy Duty

Keeper 712 Integrated Chain Lock features 7mm four-sided chain links made from 3t manganese steel. Patent-Pending End Link Design secures chain to hardened deadbolt eliminating critical vulnerability and providing extra holding power. High security disc-style cylinder is pick and drill resistant; resists most common hand tools. Durable weather-resistant nylon sleeve prevents scratches to painted finishes and protects the chain against the elements. With a 48-inch (120cm) chain length, the Kryptonite Keeper 712 is a flexible, compact and easy to use deterrent security. HEAVY-DUTY CHAIN: Made from 7mm hardened steel with four-sided links, this bike lock provides maximum resistance against cutting and leverage attacks PATENTED LOCKING SYSTEM: Features a high-security disc-style cylinder, resistant to picking and drilling, and a patented end link design that securely connects the chain to a hardened deadbolt, eliminating weak points PROTECTIVE FEATURES: Durable rubber