With 5.5mm thick security heavy-duty chain links, our bike chain lock is made of heavy-duty steel known for its cut-resistance. The chain lock itself is made of electroplated brass and hardened stainless steel shell, which cannot be defeated with any normal burglary tools. Our motorcycle lock comes with 4 rust resistant brass keys. You can take one of the keys to use in daily life, and you can leave another keys at home in case you accidentally lose one. Our bike lock is the ideal thing you need for the purpose of safely and securely locking the bike at the time of parking it in an open area. Specification: Color: sliver Size: 50 cm Material: Alloy steel, Hardened steel Package: 1 × Bike Chain Lock 4x brass keyPortable And Widely Used:Perfect medium length and weight for easy carrying, perfect for gym, skateboards, sports equipment,Garage,farm,fence, tool boxes, hand trucks and anywhere you want,Provides security for hard-to-lock-up possessions. High Quality Material:case hardened steel chain with padlock is perfect for securing a multitude of objects and areas. The heavy duty laminated steel padlock included has an expert hold that cannot be pick. The padlock body constructed of laminated riveted plate steel for maximum strength,reliable safety. SIZE:Length: 500mm. Package contains: (1)Padlock,(2)4 keys , (3)Hardened Steel Chain . Perfect medium length and weight for easy portability, perfect for gyms, skateboards, exercise equipment, garages, farms, fences, toolboxes, carts and anywhere you want, providing security for hard-to-lock items. Each padlock is individually factory tested to ensure smooth performance before packing. Case hardened steel chains with padlocks are ideal for securing a large number of objects and areas. The included heavy duty laminated steel padlock has an expert lock that cannot be picked. Make sure that small vehicles such as bicycles and motorcycles are not easily stolen.Color: Silver. Recommended Uses For Product: Security. Material: Alloy Steel. Lock Type: Key Lock. Brand: Generic. Date First Available: April 26, 2022. Best Sellers Rank: #19,027 in Sports & Outdoors. Customer Reviews: 3.7 out of 5 stars 16 ratings 3.7 out of 5 stars. : B0B18T234H. Batteries Required?: ?No. Item Package Quantity: ?1. Finish: ?Laminated. Package Dimensions: ?7.05 x 4.41 x 1.97 inches. Item Weight: ?1.29 pounds. Manufacturer: ?zechen123. Shape: ?Rectangular. Finish Type: ?Laminated. Color: ?Silver. Recommended Uses For Product: ?Security. Material: ?Alloy Steel. Lock Type: ?Key Lock. Brand: ?Generic.