Flash Furniture Gray Fabric Drafting Chair with Adjustable Arms (Cylinders: 22.5''-27''H or 26''-30.5''H) Contemporary Draft Stool Mid-Back Design Gray Fabric Upholstery Back Depth Adjustment Knob Accordion Back Cover Contoured Seat and Back Swivel Seat Pneumatic Seat Height Adjustment Height Adjustable Padded Arms Two Seat Height Ranges with Gas Cylinder Height Extenders