The design above the door handle facilitates portable installation.The large internal cavity prevents jamming, even when multiple keys are held down.Set your own combination convenience to achieve the best security.Set your own 4-digit combination to achieve keyless convenience and improve security.The molded body and vinyl-coated shackle prevent scratches.colour:graymaterial:Aluminum alloysize:166*98*46mmPackage Contents:1 * Key storage lock boxOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.*Compare the detail sizes with yours, please allow 1-3cm error, due to manual measurement. Thanks for your understandings.