Sporting a 1/4"-20 screw at each end, the 3.5" Universal Magic Arm with Dual Ball Heads from SmallRig can be used to mount an accessory on your camera rig at almost any angle. Compatible with a wide range of camera components, small lights, or sound gear, the arm has a payload capacity of up to 2.2 lb.
Both 180° ball heads are fastened using the single, large thumb lever. One end of this arm is a simple 1/4"-20 screw while the other features a thumbwheel for easier mounting to your accessory.