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, 6-way adjustable arm rests, and cast-aluminum base with stationary, non-marring glides suitable for hard floors in chemical, soil, and puncture resistant polyurethane.