Herman Miller Aeron Executive Office Chair-Stainless Steel, Size B-Fully Adjustable Arms-lumbar Support Open Box. Size: Medium Size (B) Color: Carbon Brand: Herman Miller MPN: AE113AWBAJG1BBBK3D01 UPC: 743724377750 EAN: 0743724377750. Product Dimensions: 17″D x 27″W x 42H. Size: Medium Size (B). Back Style: Solid Back. Product Care Instructions: Wipe Clean. Unit Count: 1.0 Count. Recommended Uses For Product: Office. Age Range (Description): Adult. Surface Recommendation: Hard Floor. Furniture base movement: Rock. Furniture Finish: Stainless Steel. Item Weight: 48 pounds. Item model number: AE113AWBAJG1BBBK3D01. Date First Available: January 5, 2005. Tension Control /Fully Loaded Chair. Rear Tilt Lock/ Forward Tilt / Lumbar Lumbar. Tension Control /Fully Loaded ChairRear Tilt Lock/ Forward Tilt / Lumbar Lumbar Open box.