Durable Industrial Chair is ideal for installations with multiple applications and height ranges. Adjust pneumatically 8" (200mm) up and down from 17" to 35" while seated. Adjust an additional 10" with Wave Tube Extension. Backrest adjusts 3" in height and depth. Wide-angled textured footrest provides secure footing and ergonomically correct leg position. Seat size is 16-1/4" wide x 16-1/4" deep. Back size is 14-1/2" wide x 9" high. Functions include pneumatic seat-height adjustment, back-height adjustment, seat-depth adjustment, 360-degree swivel, and dual-clutch posture control. Industrial Chair is made with 2" seat cushion and microcellular, self-skinning polyurethane foam covering. 26" five-leg tubular steel base has 2-1/2" high-impact nylon glides for safety and stability. Chair meets or exceeds applicable ANSI/BIFMA standards.