The Kryptonite Chain Bike Lock features 8mm round chain links made of hardened steel with a protective nylon cover. The three-foot chain lock includes
Kryptonite 8mm Chain Key Chain Bicycle Lock
Kryptonite Chain Key Chain - 8mm : Target
Kryptonite Keeper 411 Key Chain - Scott's Cycle and Sports
Kryptonite Keeper 785 Integrated Chain Lock Sold Secure Bronze
Bicycle
Kryptonite Chain Key Chain - 8mm : Target
Keeper 785 Integrated Chain
Tactical AustriAlpin™ COBRA® Quick-Release Key Chain
12mm Hardened Steel Shackle Resists Hand Tools, Bolt Cutters, and Leverage Attacks Interior Locking Dimensions; 4 x 10 Key Safe Program; Kryptonite
Kryptonite Keeper Bike U-Lock, Anti-Theft Security Bicycle U Lock, 12mm Steel Shackle with Mounting Bracket and Keys, High Security Lock for Bicycles
Bicycle Keychain
Kryptonite Chain Key Chain - 8mm : Target
Keeper Standard - New-U