1. Secure & Resetable uses this bicycle chain lock, a five -digit combination, more than 10,000 code combinations, which can be r than a more difficult to crack and a four -digit combination. To avoid the trouble of forgetting or losing your keyless design keys. 2. Back and durable : This bicycle chain has a lock cylinder and digital setting button made of zinc alloy, the chain of the chain lock, configuration with drill resistance, corrosion resistance, abrasion resistance and anti-venting, maximum way, weighted, weighted, weighted, weighted, weighted, weighted, weighted, weighted, weighted, weighted way. Fields! 4. Usage and versatile: This digital code chain lock has the default 00000 code, you can easily adjust your own digital code according to the pictures or video steps we provide, the code can be redefined. The length of the chain is 3.2/3.9 feet, you can also lock 2-3 bicycles, if you want to lock something thicker, you can connect multiple chain locks together, lock motorcycles, scooters, skateboarding, grille, stairs, gates, grass machines, etc. Can also be used for. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store