Give your mailbox the solid foundation it deserves with this adoorn in-ground mounting post! Made from heavy-duty galvanized steel with a scratch-resistant powder coat finish, this thing is built to withstand years of weather abuse - rain, snow, sun, you name it. The 43-inch height is specifically designed to meet USPS requirements when installed properly (buried about 12 inches deep, putting your mailbox at the perfect 41-45 inch height). Installation is straightforward - you can either set it directly in the ground or slip it over a 4x4 wooden post for extra stability in areas with freezing ground. The surface mounting plate measures 12x6 inches with a 10x4 inch hole spread, compatible with most standard post-mount mailboxes. No more wobbly, leaning mailbox that looks neglected. This post gives your home that polished, put-together look while ensuring your mail stays secure. Quality construction that actually lasts - your mailbox will thank you!