Ergonomic Office Chair 330 lb with Wheels, Lumbar Support & Headrest

["Adjustable Lumbar Support: Unlike traditional fixed-back chairs, this office chair features an independently adjustable lumbar support that moves forward and backward 1\" to fit the lower back. It helps reduce lumbar gaps when the backrest is comfortable but lower back support is insufficient.","2D Headrest Support: The 2D adjustable headrest allows 1.7\" height and 180° angle adjustment to provide targeted support for the head and neck. It helps maintain proper cervical alignment and reduces pressure during prolonged sitting, gaming, or work.","High-Resilience Thickened Seat Cushion: The seat cushion is constructed with thickened high-resilience foam to provide consistent support and pressure distribution. Seat cushion dimensions: 20 L\"*18W\"*3.2H\", support up to 330 lbs.","Ergonomic Full-Body Support Design: Ergonomic structure is designed to support natural spinal curvature through coordinated lumbar and headrest adjustment systems. It enhances overall sitting posture stability across different working positions.Suitable for people of about 5'4\" to 6'2\".","Easy Assembly with Clear Instructions: This desk chair is designed for easy assembly and can be installed by a single person. The package includes a detailed instruction manual to guide step-by-step installation for efficient setup.","Versatile Application Scenarios: Suitable for home office, workstation, study, and gaming environments. Designed to provide ergonomic support for extended daily use across multiple sitting scenarios."]