Newport Industrial Blue Polyurethane Desk Height Chair is adjustable from 17.25-22.5 inches from the top of the seat to the floor and features ergonomic adjustments including seat height and locking back tilt, built in handle for ease of movement, and black, nylon-reinforced fiberglass base with dual-wheel, self-braking, non-marring casters suitable for hard floors in chemical, soil, and puncture resistant polyurethane.