The Original Headrest for The Herman Miller Aeron Chair (HW, Onyx). Product Dimensions: 12″D x 7″W x 8H. Brand Name: Engineered Now. Additional Features: Head Support. Unit Count: 1 Count. Recommended Uses For Product: Design, Gaming, Office. Age Range Description: Adult. Included Components: Headrest, Hex tool, Replacement Bolt for A-Size Chairs, Spare Caps, Instructions. Surface Recommendation: Hard Floor. Indoor Outdoor Usage: Indoor. Item Type Name: Headrest. Furniture Base Movement: Swivel. Reclining Position Count: 1pc. Maximum Weight Recommendation: 350 pounds. Back Style: Headrest for your Herman Miller &#######x27;Aeron&#######x27; chair. Form Factor: Mesh with Frame. Item Dimensions D x W x H: 12″D x 7″W x 8H. Item Weight: 2.5 pounds. Seat Depth: 12 inches. Item Dimensions: 12 x 7 x 8 inches. Material Type: Engineered Plastic. Frame Material Type: Engineered Plastic. Product Care Instructions: Wipe Clean. Seat Material: Engineered Plastic. IMPROVE YOUR POSTURE AND YOUR PRODUCTIVITY WITH SUPERIOR ERGONOMICS One size fits all: The new HW fits all heights. Engineered Now Headrest – Wide (HW) for the Aeron is ergonomically designed to support professionals in constant motion. The ideal head and neck support will maximize performance while using modern technologies. Headrest only; CHAIR NOT INCLUDED. ERGONOMIC DESIGN Provides head and neck support to help maintain comfort and alignment during long sitting sessions. Designed for ergonomic performance. Free-Floating System Tilt and height adjustments move freely. Forward and backward angles can be locked for a custom fit and lasting comfort.