This Aeron Desk Chair, Designed by Bill Stumpf & Don Chadwick for Herman Miller, is in wonderful preowned condition with a few tiny spots on left arm rest, minor scratches that are very hard to capture in photos, all commiserate with normal use age. And the rest is fabulous! Matte polymer chassis and base. 8Z Pellicle elastomeric suspension seat and backrest. Standard upholstered polyurethane foam arm pads. 2.5-inch carpet casters or hard floor casters with quiet roll technology. Overall Height (in): 42 (at its tallest setting). Overall Width (outer arm to outer arm) (in): 27. Seat Depth (in): 20. Seat Height: adjustable between 15 – 21 ½. Seat Width 21.25. #167030 PET – GF30 – 2005 #165359 product number.