This chair is as comfortable as it is sharp, contemporary look.  Packed with features, it comes complete with height and width-adjustable padded arm rests, pneumatic height adjustment from 18" to 22", and a 24" diameter reinforced nylon base wth hooded casters.  The extra-thick seat cushion is 20"w x 19"d x 3" thick and has a tilt mechanism with spring-adjusted tension control.  The seat also features a 4-position locking depth control.  The molded polypropylene back frame is 20" wide, rises 25" above the seat, and features a stretched mesh backing and 3-position tilt lock.  Black only.