Compatible with Most Types, Styles and Brands of Outdoor Antennas Includes Telescoping Mast with Adjustable Length from 24" to 44" inches Revolutionary Mounting Plate Offers Multiple Customizable Adjustments Allowing for Installation on Angled and/or Pitched Surfaces While Maintaining a Vertical Positioned Mast Supported Installs: Roof, Wall, Eave or Attic for Slanted, Pitched, Vertical or Horizontal Surfaces Pre-Galvanized Steel: UV Stable, Matt Black Powder Coat. Max Load: 30 lbs (Depending on Mounting Surface)