Engineered Now The Original Headrest for The Herman Miller Aeron Chair (H4 for Remastered, Graphite). EXPERIENCE THE ULTIMATE UPGRADE TO YOUR HERMAN MILLER AERON – The H4 ENgage is our full size headrest designed to provide you with the neck support the Aeron Chairs are missing. The H4 comfortably fits users over 5’11, offers more adjustability and a 20% larger pillow size. GRAPHITE COLOR – Perfectly matches your Classic Aeron Chair in comfort, quality, and color, with complementary Carbon Mesh. [MATCHES CLASSIC AERON CHAIR MODELS YEAR 2016 OR OLDER]. IMPROVE POSTURE AND PRODUCTIVITY – Our headrests are ergonomically designed to support the head and neck, helping you stay comfortable, aligned and focused throughout the day. ADJUST TO YOUR COMFORT- EN headrest are intended to be free flowing. The tilt and the vertical adjustments are free-moving, while the forward and backwards adjustments can be locked to your best comfort.