Herman Miller&reg; Aeron Basic Work Stool Graphite - Fixed Arms - No Lumbar Support - HIGH Height New Aeron Work Stool for higher work tables. High Height Work Stool. AE721PWBG1N2NNBBBK3D01 - Aeron Stool BASIC High Height, Fixed Arms, Graphite, No Lumbar Classic Carbon High-performance, long-term seating in three sizes with a full complement of adjustments and innovative suspension; for computer work, general office work, and casual or formal meetings. Waterfall front edge. Reduces pressure under the thighs so circulation isn't restricted. Healthful support. The strong Pellicle suspension system distributes weight evenly over the seat and back.