Made of mesh back and fabric seat, breathable back with flexible height-adjustable lumbar support. Weight-sensing synchro-tilt mechanism with multi-position tilt lock. Automatic tilt tension adjustment. Pneumatic seat height adjustment. Height-adjustable T-arms with sliding and rotating armcaps. Black base with dual-wheel carpet casters. Weight capacity of 300 lb. Size: 27 W × 22.5 D × 41 H in. Black.