Collection Unit for 7 Door High 4B+ Mailbox Units - Bronze - Front Loading - USPS AccessCollection Unit for 7 Door High Mailbox Units The Collection Unit is designed for 7 Door High 4B+ Mailbox Units, featuring a durable bronze construction and front loading access. It is USPS approved, ensuring secure and reliable mail collection. Key Features: Durable Construction: Made from high quality bronze for long lasting use. Front Loading Design: Easy access for mail collection. USPS Approved: Meets postal service standards for secure mail