Adjustable Millenia Task Stool offers molded seat and back to allow comfortable, all-day use. Durable shellback and seat base provide clean smooth lines. Adjustable back gives support where you need it. Functions include pneumatic seat-height adjustment from 22" to 32" , adjustable back height, adjustable seat depth and 360-degree swivel. 19" diameter chrome footring is height-adjustable.Adjustable Millenia Task Stool offers molded seat and back to allow comfortable, all-day use. Durable shellback and seat base provide clean smooth lines. Adjustable back gives support where you need it. Functions include pneumatic seat-height adjustment from 22" to 32" , adjustable back height, adjustable seat depth and 360-degree swivel. 19" diameter chrome footring is height-adjustable.