This unit is in good used working condition and features three adjustment knobs and two scales. Horizontal rotation is scaled and has two modes of vertical rotation with one scale.

Unit stands about 6 feet when fully extended.

The knobs and thumb screws are all working and lock at all points. This includes the vertical rising column. Unit stands firm.

Two of the thumb locks at the very bottom of unit have broken lengths. They still work, but are shorter and require more effort to lock them. I don't find it very difficult with a little extra finger pressure.