Our ergonomic swivel executive chair characterized by multiple adjustments, including 3D armrest, up/down lumbar support and rotatable headrest, is supposed to provide extremely comfortable sitting experience. 2 buttons on both sides of the seat bring a lot of convenience in adjusting seat height and depth. Also, the innovative lever lets you rock forward or backward as you like. Additionally, the curve-designed backrest and adjustable lumbar support help reduce stress on the back and waist. The spacious padded cushion relaxes your hips and thighs during working or studying. And the heavy duty base with class-4 gas lift makes the chair strong enough to withstand a load up to 275lbs.