Steeltech Mailboxes - Senator 18" with Hopper Door for Packages, Large Storage Capacity (Black) Quality built in the USA - 100% Stainless Steel Designed with a big emphasis on security with rolled front edges, recessed doors and hinges, anti-wrench ring around the lock, and anti-pry support behind the lock so your valuable mail stays safe Overall dimensions L 20" x W 12" x D 18" - Maximum package size approximately L 12" x W 10" x D 3" Large (18" tall) storage capacity allows you to check the mail when you want to USPS Approved