The Oasis Tribolt locking mailbox offers and oversized hopper door design with internal security baffle, extra-large locking lower storage compartment and modern styling. It is constructed of powder coated heavy gauge galvanized steel panels with stainless steel hinges for extra durability. The Oasis TriBolt protects deliveries with an enhanced three-point locking system, pry-resistant lock bracket, and weather-tite rubber seals. Constructed from heavy gauge galvanized steel for durability Doors fitted with weather-tite rubber seals Accepts parcels 9.75-in x 6.5-in x 2-in to 9.75-in x 4-in x 2.75-in Anti-pry three-point lock engagement mechanism Spacious mail compartment for daily mail, magazine bundles, small parcels Stainless steel hinges and hardware Concealed outgoing mail clip Heavy gauge door and lock reinforcement USPS approved by the Postmaster General