ergonomic office chair / desk chair (City Centre S1)

Hi everyone,

I am looking for an ergonomic office chair (desk chair with wheels) for my home workspace. I need something suitable for working long hours at a computer that offers good back support.

I don't mind if it is old or well-used, as long as it is still in clean and working condition.

If anyone has a spare one they no longer need, I would be very grateful to have it.

Thank you!