Class 100 Vinyl High Bench Height Clean Room/ESD Chair 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 stationary, non-marring ESD glides suitable for hard floors in ESD Vinyl