Office Star Professional AirGrid Back Office Chair with Leather Seat, Black: * Style: modern * 1-touch pneumatic seat height adjustment * 2-to-1 synchro tilt control with adjustable tilt tension * Thick, padded contour seat and AirGrid back with built-in lumbar support * Height adjustable angled arms with soft PU pads * Heavy-duty angled nylon base with oversized dual-wheel carpet casters * Material content: AirGrid, nylon and leather * Includes warranty * Some assembly required * Dimensions: 25.25"W x 26.5"D x 42"H * Model# 5700