Ergonomic Design - This office chair is designed with human-oriented construction, which effectively withstands the pressure of the cervical vertebra, make sure you can sit at the chair for long time without pain for your vertebral. Comfortable Chair - With the lumbar support, the foam cushion seat, the mesh breathable middle back, the armrest flexibility, all of these construction allow your body molds perfectly to your chair and offer you a comfortable seat no matter at home or in the office. Easy Recline and Adjustable Height - You can recline the back of this task chair, 125 degrees allowed. Up and down to level this mesh chair easily, you can choose the height ( Lowest height: 17.92 inches, Highest Height: 21.65 inches) you need. Durable Base and Casters - Our desk chair adopts a stable star base and equipped it with 5pcs 360-degree swivel wheels, ensuring fluent smooth and quick movement and keeping up your quick pace of work. This computer chair can stand about 270lbs. Simple Installation - Our task chair comes ready to assemble, with all the hardware and necessary tools. You can build it up only about 15 minutes following the pack instruction.??Overall Dimension: 24"x 24"x 39"