Ergonomic Comfort - Padded headrest and wing design that provides ergonomic support, ensuring comfort for your entire body throughout the day. Flip-Up Function – Lift the armrests to slide the chair under your desk easily for space-saving or enjoy sitting in any position with all-day comfort, perfect for versatile use. Adjustable Features – Easily tilt and lock the chair with the tension control knob, and personalize your comfort with adjustable height and smooth 360° swivel, allowing smooth-rolling mobility. Premium Leather – Long-lasting premium PU leather resists stains, scratches, peeling, and cracks, offering durable protection for daily use while remaining soft, skin-friendly, and easy to clean. Certified Quality - Heavy duty metal base and SGS-tested gas lift ensure durability and support up to 300 lbs. Inside the cushion, the support structure is made from FSC-certified wood.