Mailbox Packagemaster Black Large capacity USPS approved high security locking mailbox. 12 and 14 gauge electrogalvanized steel construction with stainless steel hinges and hardware. Exclusive anti-pry locking mechanism accepts parcels and small packages. Includes: Drill bits, fast track mounting hardware mounts to any surface and 1 sheet reflective numbers. Heavy-duty durable powder coated finish. Dimensions: 21.5"D x 16.5"W x 12"H.