EXPERIENCE THE ULTIMATE UPGRADE TO YOUR HERMAN MILLER AERON – The H3 ENjoy is designed to provide you with the neck support the Aeron Chairs are missing. The H3 is the standard size model, comfortably fitting all users under 5&#######x27;11. CARBON 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. Special Feature: Ergonomic, Head Support. Size: H3 for Classic. Fill Material: Plastic alloy. Special Feature:? Ergonomic, Head Support. Size:? H3 for Classic. Fill Material:? Plastic alloy. Age Range (Description):? Adult. Use for:? Head, Neck. Number of Pieces:? 1. Item Weight:? 3.2 Pounds. Unit Count:? 1 Count. Item Weight:? 3.2 pounds. Product Dimensions:? 12 x 9 x 7 inches. Item model number:? Headrest by Engineered Now. Date First Available: September 4, 2011. And we will work with you to resolve it to your satisfaction.