Large Interoffice Mailbox can be used for mail collections, drop box and secure office communication. Locking hinged door provides security for confidential messages. Drop slot measures 10-1/2" x 3/4" and accepts letter-size documents, envelopes, memos, discs, CD-ROMS, keys and more. Solid steel construction features a scratch-resistant, powder-coat finish for durability. Mailbox mounts to wall for easy, eye-level access to hinged drop-front door. Mailbox includes two keys and mounting hardware.