The RAM Mounts X-Grip Phone Mount with Drill-Down Base y Backer Plate consists of a 2.1 x 2.6' steel backer plate, 2.5' diameter round base, double socket arm, and universal spring-loaded X-Grip cradle for cell phones. Designed into the mount is a 1' diameter rubber ball and socket system with adjustment points at both ends of the socket arm; this with a twist of the arm knob, allows you can move the mount to your optimum viewing position. The included X-Grip cradle has a clean and clever four leg design that sports great holding power without hiding your phone behind foam pads and plastic. The X-Grip includes a device tether recommended for outdoor applications.