Kryptonite Keeper 585 Integrated Chain Lock For Quick Stops Kryptonite Keeper series chain locks offer moderate security appropriate for quick stops in metropolitan areas or a few hours out in less populated areas. Fabric-covered chains protect your bicycle's paint from scratches and abrasions. An integrated end-link locking point eliminates the need for a separate lock when using the chain. This lock has 5mm four-sided chain links made from hardened carbon steel and a high-security disc-style cylinder that is pick and drill-resistant. Features Includes 2 standard stainless steel "I" keys5mm four-sided chain links made from hardened carbon steel High-security disc-style cylinder that is pick and drill-resistant Specifications Cable Length33. 5" (85cm)Cable Diameter5mm Lock Style Keyed Security Rating4 out of 10Weight1. 7 lbs | Kryptonite | Keeper 585 Integrated Chain Lock 85Cm (2. 8'), 5Mm