Office Star Mid-Back Mesh Screen Office Chair, Black: * Style: modern * 1-touch pneumatic seat height adjustment * Locking tilt control with adjustable tilt tension * Breathable screen seat and back with built-in lumbar support * Polished aluminum arms with zip-on black covers * Heavy-duty polished base with dual-wheel carpet casters * Material content: mesh and metal * Includes warranty * Some assembly required * Dimensions: 23.5"W x 21.5"D x 39.75"H * Model# 7361MLT