The modern styled B6888 ergonomic mesh task chair, from Boss Office Products, features a dual compartment screen mesh backrest that minimizes body heat buildup while providing independent lumbar support. Other features include an ergonomically contoured seat with waterfall seat edge in mesh upholstery, adjustable height backrest, (4) position adjustable T-shape task arms with chrome accents, Synchro tilt mechanism for a more relaxed recline, infinite position tilt lock, tilt tension adjustment, pneumatic seat height adjustment, 360 degree swivel and a heavy duty chrome finish arched base with dual wheel carpet casters. Meets or exceeds ANSI/BIFMA standards. Dimensions: Seat Size: 18"W X 20"D. Seat Height Adjustment: 18" - 21"H. Overall: 27"W X 27"D X 39"-44"H. Six year limited warranty from Boss. This chair normally ships within 2-3 business days from either our CA or GA warehouse.