The RAM-B-174-UN7 consists of hardware for mounting to either brake/clutch reservoirs and rails that are 0.5" to 1.25" in diameter, double socket arm and universal RAM X-Grip cell phone cradle. Designed into the mount is a 1" diameter patented 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 to move the RAM X-Grip mount to your optimum viewing position