Also known as the 90° or Straight Bracket, this super tough bracket is made to stand straight up on the top of any sign, fence, downpost, railing or structure. It is comprised of a mounting plate and a separate bracket that slides over the screw heads and snap into place. This security feature makes it close to impossible to steal your investment without a screwdriver to release. Kit includes mounting plate, vertical bracket, a tough 41" Premium Outdoor Extreme Balloon Stem and Premium Outdoor Extreme Balloon. Mounting plate footprint: 1.25" wide x 2.25" tall. Overall Kit height: 4.75'. Mounting screws included.