This ergonomic swive chair provides comfort and support for up to 8 hours of daily use. The backrest is designed to fit the curve of your spine, helping to relieve lower back pressure. With adjustable seat height, tilt, and swivel functionality, you can customize this chair to meet your needs. The flip-up armrests offer versatility, while the five-star base and premium gas lift ensure stability and durability. This chair has an S-shaped curved frame that's upholstered in black mesh fabric; consider adding the optional headrest for extra support and comfort. On casters, it's compatible with various flooring types, including carpet and hardwood. To maintain its appearance, avoid direct sunlight. Supports up to 300 lbs.