SECURE & RESETTABLE: Smart 5-digit resettable combination chain lock, much safer than other 4-digit locks. Easy to set your own personalized number combination. BRAIDED STEEL & PVC COATING: The bike cable is made of high-strength braided steel wire, which can withstand 2.4KN tension and 7KN shear force, offering greater strength and flexibility. The protective vinyl coating (PVC) helps prevent scratching and provides durable wear. SELF COILING & MOUNTING BRACKET: 4 feet by 1/2 inch cable is long enough for various uses. Self-coiling design makes it easy to carry. Equipped with a complimentary mounting bracket, the lock can be easily attached to other objects. The quick installation button allows for convenient setup and removal. CONVENIENT TO USE: Combination locking mechanism provides keyless convenience and allows you to set your own password in a few simple steps. With keyless convenience, there is no need to worry about losing or forgetting to carry a key. The code is resettable—choose from 10,000 possible combinations, making the chance of unauthorized access extremely low. The default code is 00000. MULTI-PURPOSE: The 4-foot cable is long enough to secure 2-3 bikes together or lock a bike to a tree, gate, fence, railing, or thick pole. The lock can also be used for motorcycles, scooters, skateboards, grills, ladders, doors, lawnmowers, and other equipment.