This mesh back chair The chair provides executive-level comfort with a cushioned seat, breathable mesh back, and glass-filled nylon back frame that delivers durability and support. Finished with a black body on a five-star base, it features nylon PU casters, adjustable lumbar support, 4D armrests, and a self-adjusting mechanism with four locking positions, height adjustment, and a depth-adjustable seat slider for tailored ergonomics. Quality backed by a limited manufacturer warranty.