Introducing the Costway Ergonomic Desk Chair with Lumbar Support and Rocking Function in sleek black. Designed for comfort and productivity, this chair features a padded seat covered in breathable mesh fabric to keep you cool. Enjoy a relaxing break with its adjustable rocking function, adjustable height, and 360° swivel capabilities. The triangular lumbar support ensures your back is well-supported while the comfortable armrests provide a place to rest your arms. With five universal casters, this chair glides effortlessly on various floor types and is easy to assemble with a clear user manual.