With heavy-gauge galvanized welded steel construction and stainless steel hinges. The Mail Boss is a Postmaster General Approved mail fortress ! An exclusive patented anti-pry latch locking mechanism prevents leveraged entry, so unlike other locking mailboxes, the Mail Boss can’t be easily pried open by would-be identity thieves. With the patented Fast-Trak® Mounting Plate, you can quickly and easily install your high-security mailbox on an existing post, platform or gang plank. UPC: 660753750609 Manufacturer Part No: 7506 Material: Galvanized Steel Color: Black Height: 11-1/4 in. Width: 10-3/4 in. Rust Resistant: Yes Length: 21 in. Incoming Mail Opening Type: Hopper Assembly Required: No Outgoing Mail Indicator: Yes Letters and or Numbers Included: No Impact Resistant: Yes Lockable: Yes US Postmaster General Approved: Yes Finish: Powder Coated Rear Access: No Incoming Mail Opening Height: 3-1/2 in. Brand Name: Mail Boss Sub Brand: Mail Manager Mailbox Type: Post Mount Weight: 23 lb. Style: Modern Product Type: Locking Mailbox Incoming Mail Opening Width: 10.2 in. Incoming Mail Opening Length: 10.5 in. California residents see Prop 65 WARNINGS