The document provides specifications for multiple mailbox models made of stainless steel. The mailboxes have dimensions between 260-475mm and weights ranging from 1.6-9.4kg. Key features include the material being 304 grade stainless steel, body thicknesses of 0.8mm, flap/slot thicknesses of 1.0mm, and rivets used for connections instead of lines. Bends are included to prevent water intrusion and sharp edges.