The RAM-B-400-GA55U consists of the Tough-Claw™ rail clamp base, STANDARD length double socket arm and custom high strength composite cradle. The Tough-Claw™ rail clamp base is the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars. 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.