RAM Twist-Lock Composite Suction Mount with Round Plate & 1-4"-20 Stud (RAP-B-166-202AU) (sku 54868)The RAP B 166 202AU consists of a 3. 3" suction cup twist lock base, double socket arm and round base adapter that contains a 1 4" 20 male camera thread. 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