Designed exclusively for Herman Miller Classic Aeron chairs manufactured between 1994 and 2016. Compatible with Classic Aeron sizes A, B, and C. Not compatible with Remastered models. Adjustable height (6 to 9 inches), 36-degree cushion tilt, and 76-degree neck joint angle. Features breathable black polyester mesh on a graphite nylon frame to match the original finish. Includes a removable coat hanger on the rear for convenient storage. Quick, scratch-free installation with provided hardware. No drilling or permanent modifications required. Designed in New York, USA, and protected by US Design Patent D1,055,607. Enhance your workspace comfort with this premium adjustable headrest, custom-engineered for the Classic Herman Miller Aeron chair. This ergonomic upgrade provides essential neck and head support, featuring a secure locking hinge that eliminates rattling during long hours of use. The breathable mesh design seamlessly integrates with your chair’s aesthetic, while the included rear coat hanger adds functional utility. Installation is straightforward and non-destructive, preserving the integrity of your chair.