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.