Really Nice Black Fully Adjustable Office Swivel Desk Chair 1 available 
The chair sits really well. Condition is really good. Odd very minor marks only
Approx size is Max Seat Height 55cms. Between the arms the Seat  is 47cms and seat depth to backrest is 45cms
Well padded seat and back. It has a Seat Arm and Back height adjustments plus a seat depth and seat and back tilt with Lumber Pad 
For a used chair. These have been well looked after. 
Please look at my other commercial items