The RAM-B-149Z-A-GOP1 consists of a zinc coated u-bolt base, SHORT size double socket arm and 1" diameter ball with custom GoPro Hero adapter. The mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter.