【Durable Material】: This mailbox is made from premium aluminum alloy, ensuring its durability and longevity. It is sturdy enough to withstand long time use. 【Blank Design】: The blank design of this drop box allows you to customize it with your company or building information as needed, providing great convenience. 【Large Capacity】: This postbox has a large capacity and can accommodate a large number of mail, newspapers, and suggestions. 【Size】: The size of the suggest box is 250mmx110mmx320mm, not occupying too much space. It can be installed in residential buildings, apartments, and community units. 【With Lock】: This collection box has a lock design to ensure the safe of mail, newspapers, and suggestions, protect against loss. Specification: Material: Aluminum Alloy Size Chart: 250mmx110mmx320mm/9.84inchx4.33inchx12.60inch Package Includes: 1 Locking Wall Mounted Mailbox 2 Keys 1 Lock