Kryptonite Keeper 785 Integrated Chain Lock

7mm four-sided chain links made from 3t manganese steel
Patent-pending end link design secures chain to hardened deadbolt eliminating critical vulnerability
Hardened deadbolt design provides extra holding power
High security disc-style cylinder is pick and drill resistant
Includes 2 new ergonomic "I" keys
Durable weather-resistant nylon sleeve prevents scratches
Key Safe Program
Dimensions: 7mm
Security Rating: 5/10