Kryptonite Krypto Lok Series 2 912 Integrated Chain Back on The Chain Gang Hardened chains provide ample protection for your bike when you leave it unattended. They're harder to cut while remaining flexible enough to store in a bag. The Kryptonite Krypto Lok Series 2 912 Integrated Chain offers moderate security in a convenient package allowing for flexibility in locking up for a few hours in suburban areas. It has 9mm four-sided chain links made from 3T manganese steel and has a weather-resistant nylon sleeve that prevents scratches to painted finishes. The pinless link design secures the chain to a hardened deadbolt and offers no weak link in the chain. Features Weather-resistant nylon sleeve prevents scratches to painted finishes Compact coiling makes it easy to carry in a bag9mm four-sided chain links made from 3T manganese steel Specifications Cable Length4-foot Chain Diameter9mm Lock Style Keyed Security Rating6 out of 10Weight6. 7 lbs | Kryptonite | Kryptolok Series 2 912 Integrated Chain 4' (120Cm) | Nylon