The new Heavy Duty (HD) Single-Locking Articulated Arm is a really versatile and exciting addition to our line of support accessories. Perfect for mounting monitors or small lights and capable of easily holding 5 pounds, the HD Arm also boasts a slick locking mechanism that allows you to loosen all three joints with a single lever. The system includes a reversible brass mounting stud with 1/4"-20 and 3/8"-16 ends and our universal clamp for mounting to bars or flat surfaces. This arm is robust, easy to use, and incredibly helpful in video, photo, and film applications.