This is an Eames Aluminum Group Management Desk Chair, model EA335, originally designed by Charles and Ray Eames for Herman Miller in 1958. These particular examples date to the 2010s. Their design includes a solid yet lightweight aluminum frame, and they are upholstered in a grey naugahyde (seemingly naugahyde, but may be leather). They offer a tilt feature with locking capability, and have a full 360-degree swivel. These models feature a pneumatic lift mechanism. The listed price includes one chair and there are two available to purchase. Each chair measures 21.25 inches deep, 22 inches wide, and 33 inches high with a seat height is 18.5 inches. The upholstery is in excellent condition, with some light wear. The bases have some light wear, and the arms look pristine. Overall, the chairs are in excellent condition with some signs of wear. Please see photos.