This is an Extended Range Flexible antenna for your Garmin Alpha or Garmin Astro handheld that has a quick connect attachment built in. It is heavy duty and gets better range than the extended range antenna that came with your handheld. It is very flexible and measures out at 14 inch long. This antenna comes as a standard (SMA) screw on or a quick connect (BNC) connection – the quick connect requires our quick connect kit to connect to your handheld with only a half turn. Compatible with the Garmin Alpha 100, Garmin Astro 430, Garmin Astro 320, and Garmin Astro 220.