???? ?MORE SAFER?The biggest difference from ordinary bicycle locks is that this bicycle U-shaped lock is made of carbon steel and zinc alloy locking beams with higher strength. In addition, this bicycle U lock is equipped with 2 rust-proof pure copper keys with complex snake-shaped slots, it will be more secure, and even if you lose one, don’t worry ???? ?STURDY & DURABLE?This bicycle U lock is made of high-hardness carbon steel, and the 2mm thickened ABS protection can resist cutting and lever attacks, providing safer protection for your bicycle. The silicone cover can prevent dust and dirt and extend the life of the lock. This U-shaped lock can protect your bike from scratches ???? ?LIGHT & PORTABLE?The mounting bracket on the bicycle can fix the U-shaped lock and remove it at any time. Adjustable diameter, suitable for all bicycles. The weight of 0.37 kg means that your lock can be carried with you without additional packaging. Never worry about leaving home without locking the bike ???? ?EASY INSTALLATION?The outer layer is hand-held and non-slip design. The waterproof and rustproof bicycle lock with mounting bracket is easy to install. You can refer to our instructions for installation. This simple and convenient installation allows you to quickly pick up and store the bike lock while riding ???? ?MULTI-PURPOSE & QUALITY ASSURANCE?This anti-theft U lock is suitable for glass doors, bicycles, sports equipment, doors and fences, carriages, mopeds, motorcycles and store doors.100% money back guarantee. Customer satisfaction is our top priority. If there is any problem with our products, please feel free to contact us, we will solve it for you immediately