Industrial Blue Polyurethane Desk Height Stool in Chrome is adjustable from 16.25-21.5 inches from the top of the seat to the floor and features 360-degree, all-around control mechanism making it easy to adjust no matter where you sit and cast-aluminum base with chrome-hooded, dual-wheel, self-braking, non-marring casters suitable for hard floors in chemical, soil, and puncture resistant polyurethane.