Adjustable-height arms attach easily to HON 5900 Series ComforTask Chairs. Design features built-in height adjustment and soft elastomer arm pads. Each arm is independently adjustable for height from 6 to 8-1/2" from the seat. Arm height adjusts in 1/4" increments with a range of 2-1/4". Adjustable-height arms are made of steel with a black powder-coat finish.