We've used a lot of antenna mounts. While our reliable J-Mount and even large towers have served us well, we saw room for improvement. So, we set out to develop the UltraPole, an antenna mount focused on versatility, durability, and ease of installation. Building upon the things our beloved J-Mount got right, this new mount adds a few simple features that make mounting any antenna an absolute breeze! The Base Kit provides a sturdy steel mount that stands 17 inches tall and can handle almost any antenna. it includes a sturdy footpad and j-pole constructed of high gauge steel, along with all the nuts, bolts, screws, and tools you'll need for a seamless assembly and installation on any surface. Additionally, the footpad features integrated grounding terminals to help you properly ground the antenna and the pole to earth. For installations requiring more height, the Extension Kit adds a modular pole to reach up to 33 inches, without sacrificing stability! Need to go even higher? Stack multiple extension kits together! The extension kit also includes two brace arms for added support and rigidity. Just like the base kit, all the essential hardware and tools are included. The extension kit is an optional add-on. If you've got our previous J-Mount, the extension kit is reverse compatible and will work exactly as expected if you're just looking for an upgrade.