Vinyl Desk Height Chair with Medium Back is adjustable from 18-23 inches from the top of the seat to the floor and features ergonomic adjustments including seat height and locking back tilt, locking seat tilt, 6-way adjustable arm rests, and black, nylon-reinforced fiberglass base with stationary, non-marring glides suitable for hard floors in antibacterial/antifungal Storm Supernova vinyl.