Herman Miller Aeron Chair Size B Fully Loaded Posture Fit. Item Weight 50 Pounds. Frame Material Alloy Steel. Seat Material Type Pellicle Mesh. New Posturefit Kit, New Vinyl Arm Pads, New Multi Surface Soft Casters, New Insert Seat Foam. Adjustable Height, Arm Rest, Portable, Rolling, Swivel, Adjustable Lumbar. Global Trade Identification Number. Recommended Uses For Product. 16.75″D x 27″W x 41H. Posture fit support for your back. Size B(Medium) Classic Aeron. Forward and Rear Tilt, Adjustable Arms. Treat yourself and your back to the chair that has been awarded Businessweek’s prestigious Design of the Decade award and has been on display in the Museum of Modern Art’s permanent collection since 1992. With our affordable pricing, you too can enjoy the luxury and comfort of a chair that has been the chair of choice amongst corporate executives, producers, and health-care professionals for decades. Features: Tension control Adjustable arms Pneumatic Height adjustment Kinemat Knee-Tilt Mechanism Tilt Lock Height Adjustable Lumbar support with 2 firmness settings for optimal lower back support Certified 94% recyclable. More than half of each chair was crafted from recycled materials. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We try our very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.