A, Mesh office chair
B, Spring Tilt Mechanism
C, Seat height adjustment
D, Nylon five-star base
Black Mesh Executive Office Chair1, Mid-back mesh swivel chair.2, Pneumatic seat-height adjustment, 360-degree swivel3, Ergonomic office chair with lumbar support.4, Heavy duty nylon base5, Oversized Dual Wheel Carpet Casters