RAM Twist-Lock Suction Cup Mount for Garmin nuvi 5000 (RAM-B-166-GA28U) (sku 54940)The RAM B 166 GA28U consists of a 3. 3" suction cup twist lock base, double socket arm and custom high strength composite cradle for Garmin nuvi devices. 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