The Lorell League Modern Lab Stool features a contoured, polypropylene shell designed to provide ergonomic support and comfort. Pneumatic height-adjustment mechanism allows customized seating, while 360-degree swivel offers full mobility. Adjustable footring ranges from 8" to 14" in height to adapt to people of most heights. Five-star base comes equipped with dual-wheel, hooded swivel casters for smooth and stable movement.