PRICES MAY VARY. 【DESIGNED FOR COMFORTABLE AND EFFICIENT WORK】 Ergonomically designed with a backrest height of 31 inches and a seat width of 22 inches. The thick cushion (5 inches thick) features embedded spring coils, providing a comfortable seating experience similar to a sofa, allowing you to sit for extended periods without fatigue and work efficiently. 【FULL-SIZE ADJUSTABLE BUILT-IN LUMBAR SUPPORT】The lumbar support is built-in at the lower back position, and it's a large-sized, adjustable