Ergonomic Headrest for Enhanced Comfort. Transform your sitting experience with our premium ergonomic headrest, designed to provide exceptional support and comfort during long hours of use. Perfectly compatible with your Remastered Aeron Chair, this headrest is an essential addition for those seeking optimal alignment and relaxation. H3: For individuals under 5’11 (Under 180cm). H4: For individuals 5’11 or taller (Over 180cm). Color: Graphite Color – Color Code 23103, perfectly matches your Remastered Aeron Chair in comfort, quality, and color, complemented by Onyx Mesh. Headrest only; chair not included. Ergonomic Design: Specifically crafted to provide head and neck support, helping maintain comfort and alignment during extended sitting sessions. Free-Floating System: Features tilt and height adjustments that move freely, with the ability to lock forward and backward angles for a custom fit and lasting comfort. Enhance your workspace with this essential ergonomic accessory that prioritizes your well-being and productivity.