LeisureC Anti-theft Alloy Steel Mountain Road Cycling Bike Chain Locks Motorcycle Lock with Key 900mm Suitable for locking motorcycle, scooter, bicycle, glass door and so on. This is thick chain very very thick and it has the nice non-toxic and tasteless material on the outside which helps prevent it getting rusty. It comes with two keys and it works perfectly. The chain lock is corner angle desin,anti-cut is performance is 1.5 times higher than normal. It is made of durable high quality alloy steel,polyester fabrics. The chain is used non-toxic and tasteless material.