ROCKBROS Bike Chain Lock Heavy Duty Anti-Theft Bike Locks Chain 3.2FT Security Bicycle Lock Resettable Combination Bicycle Chain Lock with 2 Keys for Bikes, Motorcycle, Door, Gate, Fence, Grill

Double Open Design-Combination Lock or Key Lock: 4-digit combination locking mechanisms for high security bike lock, our bike chain lock is resettable for 10,000 sets of passwords combination for the lock and the original password is”0000”.What's more, it come with 2 keys, when you forgot the password, you can use the key to lock and open.
Thicker Bike Lock and Long Enough Chain: The diameter of this bike chain lock is up to about 17.19mm, which is strong enough to provide an anti-theft performance.Besides, the bicycle lock is 3.2ft(96cm) long, you can lock two or more bikes at the same time, which is more convenient.
High quality: This bike lock made of high-strength durable metal material.Zinc alloy lock cylinder, hardened steel material, and covered with ABS plastic,which is strong and sturdy. The heavy duty material makes the lock wear-resistant, rust-proof and cut-resistant.
Durable & Anti-slip Cloth Cover: A high-quality polyester protective sleeve is used to make the chain lock more smooth, durable and wear-resistant. It won't scratch the body, protecting the perfect appearance of your bicycle. and no noise while riding.
Wide Application: The bicycle chain length 3.2 feet/ 96cm and weighs 0.93lb/420g. ROCKBROS Bike Locks prefect for motorcycles, bikes, e-bikes, gates, fence, and even lawn mowers, ladders, sports equipment etc. Note:Please don't leave your bike locked outside for long periods of time. Especially in high crime areas. No bike lock is 100% secure!

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