Matthews Knuckle Head, the Ultimate Positioning Device.
The Matthews Knuckle Head is an ultimate positioning device. It mounts to 5/8" male or 1-1/8" female and is internally threaded 3/8-16 to support standard camera accessories. It rotates in all axes and can easily support up to 15 pounds of Dots Fingers Flex Scrims and small light fixtures accepting 5/8" male. It also allows you to add the Scrim Flag Adapter for 18" x 24" Flags and Scrims.