Industrial Chair offers a contoured oversized seat with 2" seat cushion depth, back with lumbar support and 20" diameter footring. Backrest has ergo knob adjustment controls for 3" backrest depth and 3" backrest height. Chair holds up to 250 lb. and adjusts 8" in height from 19" to 27". Seat and back are made of microcellular, self-skinning polyurethane. Seat measures 16-1/4" wide x 16-1/4" deep. Back measures 14-1/2" wide x 9" high. Functions include pneumatic seat-height adjustment, back-height adjustment, seat-depth adjustment, and 360-degree swivel. 26" reinforced nylon five-prong base has a three-piece telescoping dust cover and 2-1/2" high-impact nylon glides. Chair meets or exceeds applicable ANSI/BIFMA standards.