Black Polyurethane Desk Height Chair in Chrome is adjustable from 17.5-22.75 inches from the top of the seat to the floor and features ergonomic adjustments including seat height and locking back tilt, locking seat tilt, 6-way adjustable arm rests, 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.