Product Including: One office chair, assembly is required. Inflatable Lumbar Support: You can use the airbag to inflate the lumbar area of the chair, which will provide you with effective support. It will greatly enhance your sitting experience, with no more pain or fatigue during long hours of gaming or  working. This ergonomic office chair has exceptional support for the lower back. Synchro Tilt&Tension Control: The pneumatic control empowers you to effortlessly adjust the height of the seat and seamlessly rock back and forth in your chair, ensuring a personalized and comfortable seating experience tailored to your exact preferences. Tailored Stitching Detail: The surface of this chair is exceptionally pliable, offering a supple and comfortable experience, while the meticulously crafted tailored stitching details enhance its overall aesthetics and craftsmanship. Exceptional Durability and Certified Comfort: The chair features solid construction, boasting a robust 360-degree swivel mechanism, a nylon base that ensures remarkable stability, and smooth-rolling casters, providing exceptional mobility and ease of movement. Thoughtful Design: The chair features a thoughtful design with layered body pillows and generously padded armrests, providing a comfortable seating experience that cradles your body in softness and support.