Class 100 Clean Room Industrial Black Polyurethane Medium Bench Height Chair in Chrome is adjustable from 24.75-35 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, locking seat tilt, 6-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.