Wood Medium Bench Height Chair is adjustable from 18-25.5 inches from the top of the seat to the floor and features ergonomic adjustments such as seat height, manual back height and depth adjustments, black nylon adjustable foot ring, and black, nylon-reinforced fiberglass base with dual-wheel, self-braking, non-marring casters suitable for hard floors in a 7-ply furniture grade hard wood with natural finish.