Genuine Herman Miller Aeron OEM Remastered Size B Adjustable Lumbar Support. Fully Functional and in good condition. No flaws or defects. Both retaining clips are in tact with no cracks or broken tabs. Genuine Herman Miller part. Compatible with Size B Aeron Remastered chair. Adjustable Lumbar Support System. Clean, Fully Functional and in good condition. Please message with any questions or help identifying your Aeron model.