This is a lovely hardly used Grey Adjustable Office Swivel Desk Chair with a back Lumber support pump 1 Available 
The chair is Seat height, back height and arm height adjustable with a back tilt and seat depth options. plus it has a back Lumber Support Pump
Great Condition odd very minor marks only m.
approx size is chairs width is 54cms between arms is 47cms and seat depth is 43cms but depth to backrest is adjustable max seat height 55cms
Plesse Look at my other commercial items