Blesswood World Co., Ltd. -- mechanical code lock Product Info.

Remarks:
Change Password:
If you need to change the password, loosen the cover slab off the back. Hold the pulling eye of the lock core and take the core out.
Altogether there are 12 cryptographic keys among which 6 are marked with numbers from 1 to 6. If you insert the first cryptographic key in the No.5 keyhole, it represents that the first number of the password is 5;