Core Industrial Black Polyurethane Medium Bench Height Chair is adjustable from 18.75-26.25 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, chrome adjustable foot ring, and black, nylon-reinforced fiberglass base with dual-wheel, self-braking, non-marring casters suitable for hard floors in chemical, soil, and puncture resistant polyurethane.