HealtHcentric (an ergoCentric division) medical stool with Frixion medical-grade anti-slip upholstery. Features a 16" diameter seat with high-resilient foam, foot-activated pneumatic height adjustment (157 mm lift) for hands-free operation, seat height range 19"–24.75", 24" glass-reinforced nylon base (optional 24" polished aluminum base), dual-wheel urethane casters, and 280 lb weight capacity. Frixion upholstery is GREENGUARD certified and resists hospital-grade cleaners.