High Back Office Chair 400lbs, Rocking Ergonomic Desk Chair with Lumbar Support & Adjustable Armrests - Black

【Durable & Comfortable Fabric】: Crafted with a combination of textured PU leather and breathable mesh; the PU leather offers a glossy, wear-resistant surface that is easy to clean; while the mesh back promotes airflow, preventing overheating during extended use; abundant sponge cushioning provides ample support and elasticity for all-day comfort 【Heavy-Duty & Large Capacity】: Engineered with a robust metal base and capable of supporting up to 400 pounds; designed with a wide seat and high backrest to accommodate larger body types comfortably; the chair promotes proper posture and prevents a constricted feeling, ensuring a relaxed and productive work experience 【Ergonomic Design & Massage】: Features a contoured backrest, headrest, and cushion designed to follow the natural curves of the human body; the integrated massage function in the cushion helps relieve back fatigue and promote relaxation; thickened padding and widened dimensions enhance overall comfort and support 【Adjustable Height & Rocking】: Easily adjust the seat height from 20.5 to 22.8 inches using the convenient pneumatic lever; the rocking function allows for gentle swaying, promoting relaxation and reducing stress during long work sessions; adjustable armrests provide customized support 【Easy Assembly & Installation】: Includes clear, step-by-step instructions and all necessary hardware for quick and easy assembly; typically assembled within 10-15 minutes; dedicated customer support is available to assist with any assembly questions or concerns