- Heavy Duty 7" Articulated Arm Swivel Ball Head with 1/4"-20 Screw
  and Counter Nut;
- Articulated Arms supports up to 12 lb load;
- Each Arm has a Rosette Gear for secure interlocking;
- Large Wingnut makes it easy to secure Arms in position;
- Mountable on ANY 1/4"-20 mounting hole.