Herman Miller Classic Aeron Chair Lumbar Pad – Smoke – Size A. Size: Size A Color: Smoke Brand: Herman Miller MPN: AE900NNAS8 UPC: Does not apply EAN: Does not apply. Age Range (Description):? Adult. Product Dimensions:? 12″L x 4.5″W. Product Care Instructions:? Machine Wash. Recommended Uses For Product:? Replacement. Item Firmness Description:? Medium. Item Weight:? 454 Grams. Unit Count:? 1 Count. Item Weight:? 1 pounds. Item model number:? AE900NNAS8. Date First Available: January 1, 2010. Helps prevent back pain by supporting your lumbar region. Pad adjusts vertically 4 1/2″ while depth can be set at 3/4″ or 1 1/4 by sliding the lumbar pad off and flipping it around. Compatible with Classic Aeron Chairs (Sizes A, B, and C), Classic Aeron Stools, and Classic Aeron Side Chairs. Size “A” – small, Size “B” – medium, Size “C” – large. The extremely versatile Classic Aeron Chair has a lumbar support that can be adjusted to fit the contours of your body. The pad can be set vertically through a 4 1/2-inch height range supporting the natural curve of your midback, or lumbar region. The lumbar support pad can be positioned with a thinner or thicker side facing you to vary the level of support provided. The Classic Aeron Lumbar Pad increases the comfort of the chair for those who like to recline as they sit. To find the size of an Classic Aeron Chair, stand behind the chair and feel for the raised dots under the top edge of the back frame. One dot is Small size, two dots in a row is Medium size, three dots in a triangle is Large size. Features: Helps prevent back pain by supporting your lumbar region Pad adjusts vertically 4-1/2″ Depth can be set at 3/4″ or 1-1/4 by sliding the lumbar pad off and flipping it around Compatible with Classic Aeron Chairs (Sizes A, B, and C), Classic Aeron Stools, and Classic Aeron Side Chairs Cleaning and Care Instructions: For normal cleaning, wash plastic surfaces with a soft cloth soaked in mild detergent and warm water. Rinse thoroughly and dry with a soft cloth. Do not use solvents or abrasive kitchen cleaners.