****CHAIR BASE ONLY/ MISSING WHEELS*** exthro Ergonomic Office Chair,Mesh Office Chair with Lumbar Support,High Back Desk Chair with Flip-up Arms,400 lbs Big and Tall Computer Chair with Headrest,Comfy Desk Chairs

Additional Details from the Manufacturer

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• [Ergonomic Lumbar Support for Comfy] Our office chair's premium mesh lower split back support enhances airflow and thermal management while delivering pinpoint pressure alleviation to the waist area, providing targeted relief and reducing fatigue during long work hours. The detachable lumbar support can also adjust the support angle through a rotary knob.Whether you’re working, reading, gaming or binge-watching, your lower back stays supported.
• [Adjustable Headrest for Neck] Customize your support—the lumbar pad adjusts 1.57" vertically to align with your spine’s natural curve, while the 3D headrest adapts to your preferred angle.
• [400 lbs Heavy-Duty Capacity] Built with a rugged nylon frame and premium materials, this high-back mesh chair supports up to 400 lbs, ideal for larger individuals. Features an SGS class-4 gas lift for safety and durability.
• [Extra-Thick Cushion for Sitting] The 19.7" x 19.7" ventilated mesh backrest and 2.75" thick cushion provide ample seating space, accommodating users from 5.1" to 6.1" tall. The premium high-density foam seat is thicker and more resilient than standard pads,minimizes gluteal and coccyx compression for sustained sitting comfort.
• [Hassle-Free Assembly & Support]Clear instructions make setup a breeze. If you need assistance, our team is ready to help—just reach out!