1. Durable steel cable lock: The bicycle combination lock is crafted from strength, thickened, braided steel wire, capable of withstanding a tensile force of 2.4KN and a shear force of 7KN, offering strength and flexibility. The lock cylinder is made of zinc alloy, ensuring impact resistance, breakproof performance, and theft deterrence. The protective vinyl coating (PVC) enhances water and rust resistance, providing corrosion resistance and greater durability. 2. 120 cm long, robust and reliable: The bicycle combination lock measures 120 cm, 20 cm longer than most standard bicycle locks on the market, making it long enough to secure 23 bicycles together. With a thickness of 12 mm and the advanced RS18 alloy material, it is resistant to cutting. 3. Resettable bicycle combination lock: Featuring an intelligent 5digit resettable combination mechanism, it is significantly safer than standard 4digit bicycle locks. The keyless design offers convenience, allowing you to set your own code in one simple step. With up to 100,000 possible combinations, the chance of cracking the code is just 1 in 100,000. The default code is 00000. 4. Selfretractable attachment hanging: The selfretracting design ensures easy portability, and it comes with a mounting bracket. The bicycle lock can be effortlessly attached around the bicycle saddle or other objects. The quickrelease button allows for convenient installation or removal of the lock.