Herman Miller Aeron Ergonomic Chair Size B Graphite. Chair dimensions: 41″ H x 27″ W x 16.75 D. Seat heights: 16″-20.5″. Tilt Limiter lets you set the recline range at one of three postures. Tension control lets you adjust the amount of effort needed to recline comfortably. Seat Angle Adjustment changes seat angle from neutral to engaged. Try the Adjustable PostureFit Sacral/Lumbar support. Two individual pads flex independently and can be adjust to fit the curve of your spine. Fully Adjustable Arms adjust from a height of 6.8 above the seat to 10.8 inches above the seat, slide backward and forward over a range of 2.5 inches, pivot 15 degrees outward and 17.5 degrees inward. Description When Bill Stumpf and Don Chadwick designed the Herman Miller Aeron Chair, they combined a deep knowledge of human-centered design with never-before-seen technology to create a task chair unlike any other. Now Aeron has been remastered in practically every way, resulting in a piece that better supports people and the types of work we do today. The 8Z Pellicle suspension seat and back is divided into eight zones of varying tension that cradle and support the body. The PostureFit SL backrest supports the spine while maintaining the natural forward tilt of the pelvis, with adjustable individual pads that provide lumbar support and stabilize the base of the spine for a more powerful seated posture. Whether leaning forward or reclining back, Aeron supports you through the entire range of motion, keeping your movements smooth and balanced. Design doesn’t get any more civilized. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. We usually respond within 24 hours on weekdays. Thank you for shopping at our store.