Mailboxes 4375WHT Salsbury Mail Package Drop - WhiteMailboxes 4375WHT Mail package drops are U. S. P. S. Approved master postal lock not required Manufactured by Salsbury Industries to USPS STD 7B Specifications Ideal for homes, colleges, schools, apartments, condominiums, office buildings, corporate mail centers, military bases and many other applications Made entirely of aluminum Feature a durable powder coated finish available in black, bronze, silver and white Includes an adjustable red signal flag