With 3 digits design, this mechanical combination lock allows you to set the password you want to set also easy to remember. Besides, it is designed with a thickened base, which has a strong load-bearing capacity and is very stable and reliable.Adopting polishing process, this mechanical combination lock has good anti-rust and corrosion resistance, which can be used for a long time. Also, with its good anti-theft performance, it can well protect your privacy and is very safe.It is constructed of zinc alloy material.There are 5 colors for your reference.This combination lock is suitable for drawers or envelope boxes with a board thickness of within 18mm.Item Name: Password LockMaterial: Zinc AlloyFeatures: High Hardness, Polishing Process, Easy InstallationInitial password: 0000Opening: 19mmFitted Board Thickness: 18mm withinSize Details:Chassis: 4cm x 4cm/1.57" x 1.57" (Approx.)Round Lock External Diameter: 3.7cm/1.46" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Password Lock6 x Screw1 x Locking Plate