Contemporary styling combined with durable AirGrid™ mesh delivers office seating that is comfortable yet stylish. Breathable AirGrid™ mesh offers strong support for seated tasks. Soft polyurethane padded arms for enhanced comfort. Black upholstery. Manufacturer's limited lifetime warranty. Adjustable lumbar support and arms. 2-1 Synchro-Tilt (adjusts back and seat angles simultaneously), pneumatic seat height adjustment, tilt tension control and tilt lock. Mesh seat for cool comfort. Black base. Seat: 21-3/4w x 19-1/2h. Back: 20-1/2w x 32-3/4h plus headrest. Overall height 52" to 56-1/4". Shpg. wt. 46 lbs. Alternative casters are available to meet your specific needs. Casters supplied with the chairs are not suitable for all floor types. Assembly required.