Ergonomic Design, Healthy Office Work: Designed for modern professionals, the EC200 ergonomic chair combines comfort and health with adjustable lumbar support, seat depth, backrest, seat height, multi-dimensional headrest, and large armrests, serve people from 5'4" to 6'3" (Capacity up to 280 lbs). Tested for 8+ hour comfort, this chair actively supports posture whether working from home or office. More than just seating - it's your health-focused productivity partner 2-Way Adjustable Lumbar Support: Features 4-diretion lumbar adjustment (2.36" height + 0.8" depth customization), the computer desk chair contours to your spine's natural curve. High-strength mesh back distributes pressure evenly, reducing lower back strain by up to 50%. Ideal for those who spend long hours at a desk, it promotes better posture while keeping you focused and relaxed Better Support Seat Cushion: Designed with a high-resiliency foam cushion at 55 density, the office chair