Leoben underwater light arm systems focus on making lightweight aluminum arms for attaching your lights ,arm segment or gopro accessories to your camera. Leoben arms may look like just another set of adjustable spherical ball arms on the market; but close inspection will prove otherwise. Leoben arms have been totally re-engineered to incorporate the maximum clamping action possible. The inclusion of an o-ring greatly increases the friction forces at the joint, therefore, keeping the arms where you put them. The o-ring also gets away from the metal to metal contact between the clamp and the ball of the arm. The lightweight pattern not only looks great; but also allows the arms to keep their required rigidity while keeping the weight to an absolute minimum.