This is a Brilliant Orangebox Joy Offce Swivel Chair in Grey 

Refurbished to a like new condition 

These Chairs are a fully Adjustable Height Back and Arm with a Seat Tilt and  Depth 

Orangebox  are one of the higher brands in commercial  furniture. 

Viewing and Trying are recommended. I have a unit with loads of Chairs to try. Card accepted  invoices wrote 

Friendly advice given