Metal Material: The mailbox is made of galvanized material and painted on the surface. It is durable and not easy to damage or rust even in bad weather. Enhanced Security Features: The wall-mounted mailbox is equipped with an independent password lock to ensure the safety of personal belongings and prevent letters from being stolen or tampered with. Wide Application: The lockable mailbox can be used as a suggestion box, mailbox, voting box, donation box, and the storage capacity enables it to be applied to a variety of different scenarios. Stylish and Modern: The simple design can be seamlessly integrated with any architectural style, and the smooth line design and versatile black color show personalized taste. Simple and elegant design for home or office use, you can put a name label on the mailbox for easy identification.