Equipped with a lumbar support that reduces the burden on the lower back and a simple synchronous rocking that tilts in conjunction with the back and seat. The back is made of mesh material for breathable and comfortable work. Ergonomic design, PU leather sponge pillow, elegant curvature, multi-directional curvature that fits the human hip, and fully freed sitting posture with precise and stable mechanical structure. Exquisite craftsmanship, quality resists magnification, craftsmanship and durability. Made of metal mesh and PU leather, comfortable to touch, durable, high elasticity, not easy to deform, thick elastic cushion, W seat design, increase the contact area between the buttocks and the seat surface, high internal padding Density sponge, not easy to deform for a long time. The entire chair can swing back and forth, not only for snoring and sitting on busy working days, but also to provide a wonderful experience in the intense game moments.