Wide & Large: Big and tall office chair for heavy people, oversized breathable seat with double-layer sponge Design with Adjustability: Reclining office chair with footrest offers an adjustable backrest from 100° to 140°, providing multiple resting positions. Its retractable footrest enhances relaxation during breaks Ergonomic Lumbar Support: This ergonomic office chair with footrest includes adjustable lumbar support pillows to align the spine, enabling easy adjustments to sitting positions. Enjoy all-day comfort while working or relaxing Smooth and Quiet Mobility: Unlike plastic wheels, its sturdy supports and soft PU material protect floors while ensuring quiet gliding. The casters provide smooth, 360-degree swivel for effortless movement Easy to Assemble: Addressing common assembly concerns, a clear and professional manual is provided, detailing each installation step. Even beginners can effortlessly assemble the desk office chair in under 20 minutes Redesigned for Superior Support and Adaptability This chair redefines comfort through a robust build, intelligent ergonomics, and versatile design, engineered to support you in any scenario. 1. Uncompromising Stability & Robust Construction Experience unwavering support with a foundation built to last. The heavy-duty frame, thickened steel components, and a certified CLASS 4 gas lift are anchored by a 350mm aluminum base and 65mm silent casters. This ensures total stability for users up to 500 lbs (227 kg). The generously sized seat (56cm+) comfortably accommodates various body types without constricting thigh movement. The dynamic tilt mechanism, with a low center of gravity, allows you to recline seamlessly between an upright 100° posture for work and a relaxed 140° angle for rest, with a 4-position lock to secure your preferred angle. 2. Personalized Ergonomic Adjustability Achieve a perfect fit with multi-dimensional customization. The 4D armrests adjust in height (8cm), width (5cm), pivot (30° rotation), and angle to perfectly align with your elbows and reduce shoulder strain. The self-adjusting lumbar support features a split-pad design that automatically conforms to the natural curve of your spine, providing targeted relief during long sitting sessions. For ultimate relaxation, a retractable 45cm footrest with anti-slip padding promotes healthy leg circulation.