Vinyl Desk Height Chair with Round Tube Base is adjustable from 22.5-27.75 inches from the top of the seat to the floor and features ergonomic adjustments including seat height and locking back tilt, 6-way adjustable arm rests, and black, powder-coated steel base with fixed foot ring and dual-wheel, self-braking, non-marring casters suitable for hard floors in antibacterial/antifungal Carbon Supernova vinyl.