The Executive Posture Chair is part of Mayline's Comfort Series that provides a balanced seating environment to help reduce stress on the muscles of the thighs, back, neck and shoulders. Tailbone cutout in seat cushion allows maximum comfort. Seat features a waterfall seat design and is upholstered in durable, acrylic/poly blend so you can seat comfortably. Ratchet back adjusts 2-1/2" in height for optimal lumbar location. Multifunction control includes three levers to modify angle of back relative to the seat, control tilt and forward tilt for keyboard-intensive activities. Tilt is free floating or locking within a fixed range. T-shaped arms adjust in height and feature comfortable, impact-resistant, urethane armrests. Swivel seat with steel-reinforced seat plate pneumatically adjusts in height. Five-star base is equipped with dual hooded casters. Weight capacity is 250 lb.