JOYFLY Big and Tall Office Chair, 450 lbs Ergonomic Office Chair for Heavy Duty with Lumbar Support & 3D Armrests, Home Office Desk Chairs with Extra Wide Seat, High Back Executive Chair,Adults,Grey - JF919-GREY

• Exclusive Feature: The JOYFLY big and tall office chair's seat can be adjusted forward and backward to meet the needs of all different body types. Adjust the seat to the furthest front position to experience a unique zero-gravity sensation, while allowing the lower back to better conform to the support area. Enjoy unparalleled comfort. Comfort: The JOYFLY high-back office chair for heavy duty is designed with ergonomics in mind, providing all-day comfort. The office chair for heavy duty features an adaptive headrest design, with adjustable seat and armrests for custom adjustments to ensure proper alignment and support of the body, reducing any potential tension. Dual-Back Structure: The double-layered backrest is designed according to the curve of the human spine, truly fitting the body. This big and tall office chair provides support to the neck, back, and waist simultaneously, with an independent waist structure that fully supports the curvature of the lower back, balancing the pressure on different parts of the body. Safety and Durability: Made of top-quality materials certified by the professional BIFMA organization. The big and tall office chair's high-strength metal base and 360° silent casters, along with the SGS-certified gas lift, ensure safety and stability. The ergonomic office Chair can support up to 450 pounds. Warranty and Service: We provide detailed instructions and installation videos, with assembly taking only 20 minutes. We also offer one year of free warranty and return service, just to ensure your peace of mind. If you have any questions, please feel free to contact us for a satisfactory solution.