【Full-Body Ergonomic Adjustments】：Office Chair offers full-range personalized adjustments, including 5-level backrest height, flexible headrest angle, and adaptive lumbar support. The adjustable and flip-up armrests ensure optimal comfort in any sitting position or cross your legs, embodying perfect ergonomics. 【Breathable Mesh Comfort System】：The seat of executive chair utilizes a comfort molded sponge and high-support spring base for resilient firmness. The breathable mesh backrest and headrest, combined with high-elasticity fabric, create a cool, comfortable, and durable seating experience. 【Heavy-Duty Certified Construction】：Gaming Chair supports up to 500 lbs, featuring a SGS Class 4 certified pneumatic lift, a sturdy metal base, and floor-friendly rubber wheels for smooth, scratch-free movement. The recline function allows tilting from 90° to 120°, ensuring long-term durability and comfort. 【Modern Design for Versatile Spaces】：Big and Tall Office Chair boasts a sleek, minimalist design that seamlessly integrates into various settings, such as home offices, studies, or gaming rooms, effortlessly meeting the aesthetic and functional needs of modern living spaces. 【Effortless Tool-Free Assembly】：Features a user-friendly design for a quick and straightforward setup. No tools are required—a single person can easily complete the assembly in minimal time by following clear instructions, ready for immediate comfort. [] mainColor : Black mainMaterial : Metal