Mid-Back Computer Chair Black Fabric Upholstery Adjustable Back Angle Adjustment Built-in Lumbar Support Pneumatic Seat Height Adjustment Adjustable Seat Angle Control Mechanism Forward Seat Tilt Control Multi-Function Triple Paddle Control Tension Control Knob Height and Width Adjustable Polyurethane Arms Heavy-Duty Nylon Base Dual Wheel Casters

Seat Size: 19.5''W x 18''D Back Size: 18''W x 21''H Arm Height From Floor: 24.75 - 32.5''H Arm Height From Seat: 7 - 9.5''H Overall Width: 23''W Overall Depth: 22.5''D Overall Height: 38.5 - 43.25''H