How to set a password, the result is 0 - 0 - 0 - 0, to set your own combination, follow the steps below. Step 1: The initial password is 0-0-0-0, use a screwdriver to unscrew the protective cover of the code setting switch. Part 2: Move the code setting switch from A to B (B is the password change status) Step 3: Turn the secret wheel to set a new password Step 4: Move the code setting switch from B to A (A is closed setting state) Set combination set an easy-to-remember combination using a resettable combination. The combination can only be reset when the lock is opened. The Reset button cannot be moved when locking Easy to use so easy to use, your child can use the lock without having to worry or deal with losing their keys. This lock is very easy to use and we have found that many customers use it as a door lock or even a container lock The polyvinyl chloride coating and strong cylindrical heavy duty PVC coating protect the lock from any harsh outdoor environment, will not tear in low temperature environments, will not deform in high temperature environments, and extend the life of the lock. The 14mm carabiner is made of high-quality steel and waterproof coating, providing robust security for your bike