Stable and Durable: Sturdy and durable with theft, breakage and cut protection function. The hamburger lock hardware is made of zinc alloy and special material that ensures the function of theft, cut protection, tamper-proof. Anti-theft and waterproof design: The surface of the lock core is fully sprayed with rubber paint. The bumper reduces noise during transportation, prevents damage to the bicycle frame, and can be locked directly on the lock frame, thus protecting the folding lock and preventing the electric scooter lock from being locked. Bike Lock with 2 Keys: The high security level bike lock has 2 keys, one of which you can carry for daily use and leave the other at home if you accidentally lose it. Note: The key can only be removed when it is locked. Flexible and portable: The chain lock is equipped with special rivets that bend comfortably and flexibly. It comes with a bracket that is convenient to install and can also be carried with you. It is very suitable for mountain bikes, road bikes, electric scooters, etc., to protect your cycling safety anytime and anywhere.