Ergonomics : Featuring a splicing design, the backrest closely adheres to both sides of your back, effectively relaxing your lumbar region and enhancing comfort. The concave cushion widens the contact area between your buttocks and the seat surface, relieving pressure on your buttocks and legs and improving sitting comfort. Flexible use : The armrests can be folded for storage of the chair under your desk. The adjustable height allows for a 10 cm adjustment for people of different heights. High quality : Padded with high-density sponge and covered with carefully selected imitation leather, this office chair offers you pleasant comfort and durable use with a load capacity of up to 250 lbs. The gas lift is certified by TÜV Rheinland. Assembly : With clear instructions and the tools provided, you can enjoy quick and easy assembly yourself. After-sales service : If you are dissatisfied with our products or services, please do not hesitate to contact us. Our after-sales service team will