Provide a stylish and secure alternative to the standard USPS Cluster Box Units and add appeal to new developments! These 12-door decorative CBUs are available in black, bronze, green, grey and white color options. Purchase new horizontal mailbox units or update existing ones by purchasing these new bases and tops separately. These durable locking mailboxes are constructed of durable aluminum with a powder coated finish. This mailbox unit features 12 tenant doors with one parcel compartment. Units are not Postal approved--ask your Carrier if he or she will deliver.