Wave Mesh Mid-Back Task Chair, Supports Up To 250 Lb, 18" To 22.25" Seat Height, Black Contemporary styling with incredible comfort and support. Breathable and comfortable black mesh back. Sturdy base ensures strength and stability. Black five-star nylon base with casters. 2-to-1 synchro tilt provides a deep, comfortable recline. Mesh seat cushion has two layers of padding for unparalleled comfort.