his Convi Clamp accessory is multi-segment five-section arm with four double ball joints, each with a locking knob for precise manipulation of each of the joints. The two end segments are shorter than the three center segments. One end has a baby 5/8" (16mm) stud tapped with a 3/8"-16 thread and the other has a hex stud for mounting in a Convi Clamp.
