This medical stool is upholstered in durable Black, antimicrobial vinyl, and equipped with a 4 inch thick molded foam seat that provides improved durability. Its plush back cushion provides comfortable back support for extended periods of work. It is attached with an easy to reach gas lift seat height adjustment lever, providing a vertical range of 6 inches to suit your comfort and work environment. The stool's 20 inch chrome footring provides added foot and leg support. The hooded double wheel casters make it easy to move and shift directions.