The JonyJib Vertical Brake from Jony attaches to all the JonyJib models and provides a vertical lock for the mast. The mast can be released by simply loosening the knob, and tightening the knob locks the mast in place. The brake is well suited for stop motion and other types of photography where it is imperative the mast does not move.
Note:
The brake is not required for standard jib work.