Winchester Mesh Office Chair The Winchester Mesh Office Chair has many adjustable features, including a twin lever mechanism with a multi-position tilt lock, adjustable lumbar support, and a height adjustable headrest. SKU: OC123OI Deluxe mesh chair with soft pad height adjustable arms Height adjustable pivoting headrest Adjustable lumbar support Twin lever mechanism with multi-position tilt lock Airflow mesh seat fabric Nylon spider base FREE installation 7 - 10 working days delivery (click here for full details) Need more choice? Call us on 0800 559 3917, or visit our showrooms in London, Essex, or Northampton, for additional wood options, prices, and availability.