| Pneumatic seat height adjustment allows quick and easy adjustment that regulates height of chair relative to floorBack height adjustment allows positioning of lumbar support within a fixed range to alleviate back stressSeat depth adjustment positions chair back relative to seat to reduce pressure on the buttocks and thighs for both taller and shorter usersChair rotates a full 360° in either direction for ease of motionBack tilts with pressure allowing user to recline while keeping seat cushion level to floor Dimensions: Seat Size: 20″w × 19¼″d × 2¼″tBack Size: 17¾″w × 18½″h × 2½″tOverall Max: 42″h × 24¾″w × 24½″dArms to Floor Min: 26¼″hSeat Travel: 3½″ |