The RAM-166-202U consists of a 3.3" diameter suction cup twist lock base, a 1.5" diameter double socket arm and a round base adapter that contains the universal AMPs hole pattern. The suction cup, twist lock base is designed to have a strong hold on glass and non-porous plastic surfaces, including adhesive disks. The hole pattern found on the round base adapter will connect to many RAM cradles. The mount is designed with a RAM 1.5" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allows for almost infinite adjustment and perfect viewing angles.