Many chairs have scuff resistant arched molded bases with matching casters, impact resistant outer back shells, adjustable height arms and headrests. All seating models come with easy-to-follow assembly instructions with detailed photographs making product assembly quick and simple.Features:- Tilter Chair with Arms- Stocked in durable, patterned Black fabric upholstery- Pneumatic seat height adjustment- Height adjustable armrests with polyurethane armrests- Single position tilt lock with tilt tension adjustment- Fixed back angle- Scuff resistant arched molded base with twin wheel carpet castersSpecifications:- Dimensions:38H x 25.5W x 23.5D- Weight:39.7 lbs