Class 100 Clean Room Core Industrial Blue Polyurethane High Bench Height Chair in Chrome is adjustable from 23.5-33.5 inches from the top of the seat to the floor and features manual back height and back depth adjustments, built in handle for ease of movement, 2-way adjustable arm rests, chrome adjustable foot ring, 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.