Our surface mounted 42″ marine grade stainless steel post features a modern and sleek design. Offered in full stainless steel 316L, it has a better rust resistance than stainless steel 304 and it has 2 plates-welded mount. This model is surface mounted post. Size: 42” x 2” x 2”. Looking for a black mailbox post? Check out the 42 B. All of Vsons’s timeless mailbox posts are made with expert craftsmanship and durability to last a lifetime.