About Mayline Mayline Company was founded in 1939 under the name Engineering Supply Company. The company proved to be an expert in the manufacture of drafting tables, blueprint files, and straightedges. During the war years, Mayline provided highly accurate navigatonal and mapping accessories for all branches of the military. Though still a market leader in manual drawing and large format filing, Mayline has moved to the forefront of office ergonomics. Mayline offers the market"s largest and most diverse selection of manual-assist, counterbalance, and electric sit-to-stand workstations found anywhere. Mayline is located in Sheboygan, Wis. * Mid-back office chair in black * Thickly padded foam seat and back upholstered in leather * Heavy-duty nylon base with dual-wheel casters * Swivel seat with one-touch pneumatic height adjustment * Built in lumbar support with height adjustable arms * Tilt with tilt lock and tilt tension adjustment * Manufacturer provides limited lifetime warranty * Seat dimensions: 19.75W x 19D in. * Overall Dimensions: 27W x 28D x 39.5 - 43.5H in.