Titanker Bike Chain Lock, Heavy Duty Bicycle Locks, High Security Cycling Locks with 2 Keys, Anti-Theft Lock Chain for Bike Motorcycle, Bicycle, Door, Gate, Fence, Grill (920mm x 6mm)

High security bike lock: With 6mm thick security heavy-duty chain links, our bike chain lock is made of heavy-duty steel known for its cut-resistance. Regular lubrication for the lock hole and keyhole will prolong the lock’s service time.
Protective cloth sleeve & dust proof cover: The chain of this bicycle lock is enclosed in protective cloth sleeve that could effectively protect the chain locks from being rusted and scratched. And the dust cover can protect your keyhole from rain and dust.
Come with two keys: Bike locks will come with a spare key to prevent key loss. The barrel of the lock spins to make locking and unlocking it more convenient, easy to use. Safety tips: Never leave your bike locked outside for long periods of time. Especially in high crime areas. No bike lock is 100% secure.