Basic Ikea grey/black office chair on castors. Seat can be raised or lowered and back rest can be set to recline or locked into position. The back is a comfortable net mesh with added lumbar support. The seat cushion was feeling a bit thin so we added a moulded support cushion some time ago. You can have this as well if you want it (see photo 2 & 3). All in good condition with no rips or tears and from a smoke & pet free home.
For details about the chair see this link but this is the current model so may be slightly different to ours which is about six years old:
https://www.ikea.com/gb/en/p/flintan-office-chair-black-50489031/