[Luxurious Comfort Support]The backrest and seat of this executive office chair is filled with a soft, elastic sponge to provide you luxurious comfort. Sitting on this desk chair, you can enjoy a sofa-like back experience. [Ergonomic Design]Up and down 3.9'' adjustable pneumatic seat height will meet your different needs. The whole swivel computer chair can be rock to 110°. For upmost comfort, our work chair set features a new ergonomic design to adapt to your body shape perfectly, so you no longer have to worry about the discomfort. [High Grade Materials]This high-back gaming chair is upholstered with supple cloth in place of leather, this breathable fabric allows air circulation to help you cool off even during summer. The soft armrests are covered in skin-friendly fabric to fit your arms and provide comfortable support. [Safe & Reliable]This high-back ergonomic office chair is constructed of sturdy five-star metal base and SGS-certified class 3 gas-lift. It has passed the BIFMA test and can support a weight of up to 140kg(308lbs). 360°rolling swivel nylon casters make this desk chair more flexible and convenient. [Easy Assembly]No additional tool needed to assemble this home office chair. We provide all the tools and the detailed assemble instructions / videos for you.