Class 100 Vinyl Desk Height Clean Room/ESD Chair with Medium Back in Chrome is adjustable from 19-24 inches from the top of the seat to the floor and features ergonomic adjustments including seat height and locking back tilt, electro-static dissipating materials for proper grounding, 6-way adjustable arm rests, and cast-aluminum base with dual-wheel, self-braking, non-marring ESD casters suitable for hard floors in ESD Vinyl