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Make the best first impression of your home with the Atherton™ Onyx Black Mail Post & XL Black Mailbox, an elegantly-styled mailbox and post cover featuring a classic wood millwork appearance without the maintenance required of real wood. This stately post and the extra-large, uniquely-durable coordinating mailbox and smartly-designed paper chute, combine to meet your mail delivery needs while making a lovely enhancement your home’s curb appeal.

The beauty and transitional style of the Atherton Mailbox and Post will welcome you home for many years with its high-quality construction and classic molded detailing for a mailbox and post aesthetic worthy of any estate.


  • Beautiful design paired with durable construction results in a mailbox and post that you’ll be proud to come home to for many years.
  • Never needs to be sanded, stained, or painted, and will not chip, splinter, rust or tarnish.
  • Created with fade-resistant resin, your mailbox and post will present their rich color for years.
  • All needed hardware included.
  • High-quality resin retains its beauty for years, withstanding inclement weather with no need for painting, sanding or staining
  • Recessed panels, crown molding, and crisp corners give this sturdy resin post the authentic look of crafted wood.
  • Extra-large capacity holds days’ worth of mail and even small to medium-size packages; dependable magnetic closure.
  • Mail Posts easily slide over a standard 4”x4” wooden post (wooden post sold separately).
  • Strong stainless steel support plate prevents mailbox sag that is common with other posts.
  • Designed and manufactured in the USA.


  • Brand: Step2
  • Assembled Dimensions: 59.75″ H x 8.125″ W x 24.25″ D