This big and tall office chair supports up to 350 lb – with a BIFMA-certified metal base and SGS Class-3 gas lift for rock-solid stability; stable, wobble-free use for larger users at home or office. All-day ergonomic comfort – the high-back design with built-in lumbar support aligns your spine, while the thick pocket-coil and high-density foam cushion delivers sofa-like comfort for long work sessions. Space-saving flip-up arms – padded armrests flip up to let you slide the chair under a desk or use it as an armless office chair; height adjustment and 360° swivel offer flexible mobility. Smooth recline and mobility – tilt back 90–120° with adjustable tension control and lock the recline for focused work or a relaxing break; quiet dual-wheel casters roll smoothly on carpet, wood, or tile. Premium PU leather and easy care – breathable, stain-resistant PU leather wipes clean effortlessly, maintaining a like-new look; quick assembly with tools and a 1-year warranty for peace of mind.