ABOUT How to Change the Password of the Metal Mailbox Combination Lock

Black metal combination locks are what we commonly use on custom mailboxes. The main reason is that the metal material is very strong, and the lock is unlocked and closed by a three-digit password. There are 1,000 different password combinations that are very safe.
But many friends do not know how to modify and change the password, this video will tell you the answer.
For more ideas or requests, you may comment down and I will do my best to deliver it to you thru this channel.
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