The AdirOffice Locking Drop Box Wall Mounted Mailbox is designed to hold keys, cash, envelopes or other important materials that need to be dropped off after hours. Constructed of durable, heavy-duty 16-Gauge galvanized steel to provide long-lasting strength and furnished using a powder-coated, scratch-resistant finish. Wide enough to accommodate bigger items than your average drop box slot. This secure drop box features an anti-fishing bin door that accepts letters, checks, keys and other small bundles, To prevent theft, a anti-pry latch locking mechanism is used. This mailbox includes 4 mounting screws, 4 stainless steel washers, a driver bit and a drill bit for quick and easy installation of the box wherever you'd like to mount it.