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• New 3 Digit Combination Password Box Lock 20-30mm Smart Cam Code Lock Zinc Alloy Mailbox Cabinet Door Security HardwareDescription:100% Brand new & High high quality Lock reliable manufacturer three Digit Combination Lock Metal material, Anti-corrosion, Durable How to change the password: There is a password substitute gap at the backside of the lock. Use a small stick with height this hole in the open state, do not release it, and then change the password. Release your hand while you're done, and the password exchange is complete. You can exchange the password by yourself the lock, replace the password through , do not change three numbers at once. Remember the password, the incorrect password will not be able to unlock.Specifications:Material: Zinc Alloy Surface Treatment: Chrome Plating Lock Body Diameter: 19mm Shell Diameter: 38mm Thread Length: 20mm, 30mm Suitable : Thickness 5-12MM (20MM lock). Thickness 15*25MM (30MM lock) Password: 000Package Included:1* Keyless cam lock

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