The ANTOP AT-723 J Pole - Outdoor TV Antenna Mount, with weather -resistant material, is ideally for outdoor use. The including mounting accessories enable you to install easily. Its adjustable angle, base pivot allows for flat, angled, or vertical use and supports roof, attic, or sidewall installations. Engineered and designed in the USA by ANTOP, the antenna specialists, the 22in mast, 1.3in diameter TV Antenna Mount is suitable for all types of outdoor antennas.