The RAP-B-166-2-AQ7-1 consists of a 2.75" twist lock suction cup base, double socket arm, diamond adapter base and small AQUA BOX® Pro 10 case. The suction cup, twist lock 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. Case Internal Dimensions: Fits Smartphones Up To 4.58''(H) X 2.46''(W) X 0.47''(D) (depth will flex)