RAM Mount Universal X-Grip Holder Handlebar Rail Mount [RAM-B-149Z-UN7]RAM Mount Universal X Grip Holder Handlebar Rail Mount Part #: RAM B 149Z UN7U The RAM B 149Z UN7U consists of a double socket arm, handlebar rail mount with zinc coated u bolt base and universal spring loaded X Grip holder for cell phones. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at the both ends of the socket arm; this with a twist of the arm knob, allows you can move the suction cup X