The RAP-B-138-AQ7-2-I5 consists of a 2.5" diameter round base that contains the universal AMPS hole pattern, double socket arm, diamond adapter base and AQUA BOX® Pro 20 i5 case. The included cradle clip attaches directly to the mount, and serves as a quick release mechanism, allowing you to quickly insert or release the AQUA BOX® case. 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.