Mailboxes 1020ALM Name Directory - AluminumMailboxes 1020ALM Name directories are made of aluminum Ideal for apartments, condominiums or other businesses Feature a durable powder coated finish available in bronze and aluminum Can accommodate up to 45 names on 1 4" label tape (not included) The U. S. P. S. requires a directory in buildings where 15 or more tenants have mailboxes and mail is delivered by the U. S. P. S. Salsbury Industries is an ISO 9001: 2015 certified company and has excelled