The RAM-B-166-C-202 consists of a 3.25″ suction cup twist lock base, LONG double socket arm and round base that contains the universal AMPs hole pattern. The suction cup base is designed to have a strong hold on glass and non-porous plastic surfaces, including RAM adhesive disks. The mount is designed with a RAM 1″ diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. The hole pattern found on the round base adapter will connect to most RAM cradles and 3rd party cradles. Overall Length: 9″ Material: Powder Coated Marine Grade Aluminum Ball Size: 1″ Rubber Ball „B” Size Note: Part number reflects product packaged in clear clam shell for store shelf display. This mount does not require any drilling for installation. Related Links:RAM Suction Cup Mounts.