Dual Vernal Lumbar Support: Advanced vernal system and high-density foam deliver tailored ergonomic comfort, easing back, neck, and shoulder fatigue for long office hours. multi-functional Adjustable Office Chair: Features customizable headrest, 3-stage seat height, reclining backrest (90°-135°), and 90° rotating armrests for flexible support. Reinforced Executive Design: Constructed with mark-resistant faux leather, 5-star metal base, and SGS-certified gas lift holding up to 400 lbs for lasting durability. Versatile for Any Workspace: Ideal for home office, corporate, study, or gaming setups, offering smooth 360° swivel and wide, scientifically contoured seat for enhanced circulation. Easy Assembly & Reliable Support: Simple setup in 30-60 minutes, backed by clear instructions, responsive 24-hour customer service, and dependable warranty.