chain lock with good quality and low price Product: chain lockModel No.:5120Lock cylinder: brass cylinderChain: Φ6mm manganese steel, heat-treated, white zinc plated, rubber tube coveredLock body: zinc alloy, chromeddiameter of the chain:Φ6mmLength: 1200mmWeight: 1.2kgPackages: paper box, 20pcs/stn chain lock for motorcycles