Herman Miller Aeron Chair – Great Condition, There are 3 available, all Size B with Lumbar Support pictured. Price is Per Chair. Chairs are in great shape, a perfect blend of comfort and style. This chair is ideal for anyone seeking ergonomic support for long hours at a desk. Model: Aeron Chair Size B. Color: Graphite Frame with Carbon Classic Pellicle. Lumbar Support: Adjustable Lumbar Support. Arm Type: Fully Adjustable Arms. Tilt Mechanism: Tilt Limiter with Seat Angle Adjustment. Casters: 2.5 Black Yoke Caster Wheels. Build Quality: Durable and designed for long-lasting use. Ergonomic Design: Offers superior lumbar support and comfort. Breathable Material: Pellicle suspension material keeps you cool and comfortable. Customizable Adjustments: Find your perfect seating position with multiple adjustment options. Timeless Aesthetic: A sleek and modern look that fits any office space.