The Handy Post sleeve (sign, planter, flowers and mailbox not included) is constructed of maintenance-free and durable PVC and comes with a Lifetime Warranty against peeling, flaking, blistering, corroding, rotting and manufacturing defects. It is designed to fit over an existing or new wood 4x4 (actual 3.5"x3.5") post, or can fit over many no-dig supports of similar dimensions. If your mailbox or sign is secured to any type of wood 4x4 configuration, you can modify it by cutting it to a straight up 52" height or less to accept The Handy Post. The Handy Post is multi-functional as the arm is adjustable up and down, and may be used as a Mailbox, Sign or Planter Post (see all photos). It offers an extra large newspaper holder for use with a Mailbox, or you can close the holder off with the additional cap (included) and use as a Sign or Planter post (see all photos). The arm will accommodate up to 50lbs with no sag and can accept signs up to 18" horizontally or much larger vertically. This aesthetically pleasing, economical product will enhance any home or business property. Upgrade your old wooden 4x4 mailbox post, hang your home or business address sign in style or display a flower arrangement in your yard. The Handy Post will add character to any setting. Conveniently packaged with hardware and installation instructions included. Also see Decorative Gothic Post Top in optional accessories as seen in photos on Amazon as well.