About this item 5-Digit High Security:The bike lock has a 5-digit combination lock, so there are 100,000 possible combinations which are difficult to decode.< /p> Wide Application:This chain lock with password is ideal for protecting bicycles, motorcycles, scooters, ATVs, strollers, tool carts, boxes, ladders, gates , doors and fences against theft. Durable: The bicycle lock uses a high-strength alloy locking cylinder and a hard ABS locking head. The bicycle lock adopts 6mm thick hardened steel chain, bold alloy steel chain is more secure and anti-theft. The polyester anti-UV nylon protective cover can protect the bicycle from scratches and prolong the service life of the lock. Convenient: Steel chain with a length of 600 mm and a weight of 485 g. It is long enough to lock your bike or door and easy to carry. Convenient:Factory setting is 00000. Follow the steps and the combination lock can be easily replaced with the desired password. Noticed : Take and save photos after resetting your password.