Black Polyurethane Medium Bench Height Chair is adjustable from 20.5-28 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, adjustable foot ring, and cast-aluminum base, dual-wheel, self-braking, non-marring casters suitable for hard floors in chemical, soil, and puncture resistant polyurethane. Each of these chairs can support up to 300 lbs.