Safco 12 x 12" Wall-Mounted Inter-department Mailbox with Lock

External Dimensions: 12" Width x 12" Height - 2.92 gal - Media Size Supported: Letter - Steel - Black Powder Coat - For Mail, File, Document, Envelope, Key, Memo, Disc/Diskette Storage, CD-ROM - Recycled - 1 Each. For interoffice mail and secure office communication. Secure with locking door; 2 keys included.