Polyurethane ESD Tractor Standing Height Sit-Stand in Chrome is adjustable from 23-33.5 inches from the top of the seat to the floor and features electro-static dissipating components to ensure proper grounding with ergonomic adjustments such as seat height and locking seat tilt and cast-aluminum base with stationary, non-marring ESD glides suitable hard floors in chemical, soil, and puncture resistant polyurethane.