Black Office Swivel Chair as in title and pictures. Adjustable seat, adjustable backrest.
Well used so a few scuffs and seat perhaps not as springy as once was, so might get a bit uncomfortable after a whole day of sitting on, but ok overall and for sitting on for a few hours at a time.
Pick up only in Sherburn in Elmet or could maybe bring it to you if I'm passing your way.
Happy bidding!