The Front Loading Rotary Enclosures allow you to quickly and easily add Private Use Guardian Mailboxes into limited spaces. The Rotary Enclosures are great for dormitories and large corporations where wall installation is not an option. Enclosures can hold up to 9 Guardian Mailbox units (the oversized Guardian unit takes up 2 spaces). When the Master Lock is turned, the unit unlocks and rotates 180 degress to expose the open backs of the units. This allows Guaridian Mailboxes to be loaded from the rear when there is no place to install them in the wall. After loading the boxes, the unit is again rotated 180 degress and securly locked. Customers then retrieve their mail from the front using their key. Mailboxes are sold separately. THese units are NOT USPS Approved, and are for Private Use only. Units are constructed of steel with a colored vinyl wrap. These custom manufactured enclosures are not returnable. Light Oak color.