Herman Miller Aeron ergonomic mesh office chair, Medium Size B. Premium office seating at a fraction of replacement cost. Used condition with dirt and cosmetic wear. Untested; functionality is not guaranteed. This one looks very nice compared to most we get in! We are not chair dealers so we describe what we see and sell it! May be perfect or need some work! Some cosmetic wear and dirty! High cost, high value equipment for a fraction of the new /replacement price. We are surplus equipment dealers and do not have the ability or knowledge to test equipment for functionality beyond plugging it in and describing what we observe as best we can. 2 You are purchasing used equipment – most is untested as stated in our description. Please reach out to us directly if there is a problem. We are quick to respond and resolve. Used items have a 30-day return. We have no knowledge of the history of the equipment. We do not have power cords to provide unless they are attached to the item or unless stated that they are provided. If one is pictured it is for testing purposes only unless it is attached or stated that it will be included.