RockBros Hamburg Lock Bike Anti Theft Mini Foldable Chain Lock Folding Locks Bicycle Cycling LocksSpecification:Brand: RockBrosColor: Blue、Black&White Lock size: W7cm X H5cmLocking Plate: L58.5cm X W1.8cmLock body material: Zinc Alloy+ ABSKey material: SteelNet weight: About 540gFeatures:Hamburg design、folding lock.German Red Dot Design Award.High security and drill resistant lock cylinder.One Lock can lock more than one bike.Easily fixed to the Handlber、Seat Post and so on.Patented Product.Easy to use、 easy to carry.Complete configuration、perfect match、a multi-use lock.Package includes:1 x Hamburg Lock3 x Keys1 x Spacer1 x fixed lock bracket1x inner hexagon installation tool