Comfort and Durability Computer Chair: The high-density mesh cushion provides all-day comfort and support, the quality material mesh is resistant to abrasion and deformation, the mesh backrest and mesh seat ensure air circulation, resulting in enhanced comfort Scientific Office Chair: This well-made adjustable lumbar support is ergonomic, the adjustable height of 1.97'' can provide you with comfortable support for a long time, ensuring that you will not be tired 90° Flip Up Padded Armrests: Cushioned Armrest are more comfortable, the armrest can be rotated 90° upward as needed, you can use it as an office chair/home chair/computer chair/gaming chair etc Versatile Office Chair: The 360° task chair adopts quality material base and upgraded cylinder, the 3.93'' seat height adjustment and 30° tilting function provide unparalleled flexibility Easy Assembly: The mesh office chair is equipped with all hardware and necessary tools, the installation video is attached