Constructed from durable, heavy-duty 16-Gauge galvanized steel, the AdirOffice Ultimate Large Drop Box Wall Mounted Mail Box is designed for holding keys, cash, envelopes or other important materials that need to be kept for safety purposes. This wall mounted mailbox is great to use for a variety of establishments like retail stores, military facilities, rental facilities, customer service counters, auto dealers and other facilities. With long-lasting strength, the AdirOffice Mail Box is built for security. It features an anti-fishing bin door and an anti-pry latch locking mechanism that prevents theft. Its locking access door features a commercial grade 12-disc wafer lock and 2 laser cut keys that secure the items in place. This powder-coated, scratch-resistant finish mailbox is the most convenient solution for after-hour drop box applications like night drops, key drops, payment drops, interoffice mail and the like.