Office Star Screen-Back Task Chair with "T" Arms, Black: * Breathable screen back and fabric seat * Built-in lumbar support * 1-touch pneumatic seat height adjustment * PU padded "T" arms * Heavy-duty nylon base * Dual-wheel carpet casters * 5-year warranty * Assembly required * Dimensions: 24.5"L x 22.75"W x 37.5"H * Model# EM20222-3