RAM X-Grip Large Phone Mount with Brake-Clutch Reservoir Base (RAM-B-174-A-UN10U) (sku 54884)The RAM B 174 A UN10 consists of hardware for mounting to either brake clutch reservoirs and rails that are 0. 5" to 1. 25" in diameter, short length double socket arm and universal 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 X Grip mount to your optimum viewing position. The