This Delivery Vault serves as a depository, collection and storage unit. Equipped with a removable tote for easy collection, a unique security drop door mechanism (U.S. Patent Number 6,347,737) and a key locked storage compartment the Secure Collection Unit prevents access to deposited and collected items. The front key locked access door allows units to be placed against walls and other areas where space is a concern. Constructed from heavy duty 16-Gauge galvanized steel with a durable powder coated polyhammer finish and stainless steel hinges, the Delivery Vault withstands the elements and tampering. The Secure Collection Unit is used by the TSA in airports Throughout The United States. This drop box is great for use as confiscated item depository, sensitive document depository, evidence depository or book drop. Color: Black.