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• New three Digit Combination Password Box Lock 20-30mm Smart Cam Code Lock Zinc Alloy Mailbox Cabinet Door Security HardwareDescription:100% Brand new & High quality Lock reputable producer 3 Digit Combination Lock Metal material, Anti-corrosion, Durable How to change the password: There is a password exchange hole at the backside of the lock. Use a small stick to top this gap in the open state, do not release it, and then replace the password. Release your hand while you're done, and the password replace is complete. You can replace the password by yourself the lock, substitute the password through , don't substitute 3 numbers at once. Remember the password, the incorrect password will be unable 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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