Kryptonite 999522 New York Chain with Evolution Series 4 Disc Lock - 5ft. - 6in. Chain

12mm 6 sided chain links made of triple heat-treated boron manganese steel...

Durable, protective nylon cover with hook-n-loop fasteners to hold it in place. New York Disc Lockfeatures 15mm hardened MAXPerformance steel shackle and higher security disc-style cylinder. Patented, hardened oval crossbar design is stronger than a typical round tube. Hardened double deadbolt design provides additional protection against twist attacks. Includes 3 keys: 2, I keys and one with a high-intensity L.E.D. bulb for convenient, easy unlocking in the dark. $1250 Anti-Theft Protection offered by manufacturer Key Safe Program; key registration and replacement.