Flash Furniture Mid-Back Designer Back Task Chair, Black: * Mid-back swivel chair * Perforated plastic back * Padded foam fabric seat * Locking back angle adjustment * Pneumatic seat height adjustment * Heavy-duty nylon base * Dual wheel casters * CA117 fire retardant foam * Assembly required * 2-year manufacturer"s warranty on parts * Overall Dimensions: 25.5"W x 25.5"D x 39"-43.25"H * Seat Size: 19"W x 18"D x 18.75"-23"H * Seat Thickness: 3" * Back Size: 18"W x 21"H * Model# WL3958SYGBK