Class 100 Vinyl High Bench Height Clean Room/ESD Chair with Medium Back in Chrome is adjustable from 26.25-36 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, chrome adjustable foot ring, and cast-aluminum base with dual-wheel, self-braking, non-marring ESD casters suitable for hard floors in ESD Vinyl