The RAM-B-404-A-366U consists of the medium RAM® Tough-Claw™ base, short double socket arm and and 1" diameter ball with 1/4"-20 threaded stud for action cameras. The RAM Tough-Claw™ is the perfect mounting base for quick and easy tool-less installation and removal on round, square, odd shaped rails and bars. The RAM® Tough-Claw™ can be clamped on rails from 1" - 1.6" outer diameter. 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.