Executive mid-back chair features a molded, cushioned back and seat upholstered with durable fabric and a ratchet back with built-in lumbar support. Arms adjust in height from 26" to 29-1/2" and have soft pads for comfort. The five-star nylon base offers casters for easy chair movement. Functions include pneumatic seat-height adjustment from 18-1/4" to 21-3/4", 360-degree swivel and dual-action synchro tilt, which is a weight-adjustable mechanism. Mid-back chair holds up to 250 lb. and meets/exceeds applicable ANSI/BIFMA standards.