Liberty Hardware Vortex Full-Size Square Post Kit, Black: * PVC post material resists fading for exterior durability * Contemporary design available in black or white to complement a wide variety of home designs * Post arm is adjustable to correct US postal service codes * Made of PVC (rust free protection) * Square post * Patent pending, horizontal support bar has total vertical adjustability * Mailbox box base allows for mounting of standard and most rural size mailboxes * Newspaper box sold separately to finish the look