User instructions to lock:
1) Close the door
2) Make sure knob is pointing to unlock, then set any 4 digit code
3) Turn the knob to lock
4) Scramble the code
User instructions to unlock:
1) Re-enter your code
2) Turn the knob to unlock
3) Open door
4) Scramble the code for the next user
The user instructions are on the inside of each locker.