The Herman Miller Aeron New Genuine Back Rest Size B in Onyx color is a high-quality office chair backrest designed for gaming purposes. Known for its durable construction and sleek design, this product is ideal for creating a comfortable and supportive seating option in the office. With the trusted brand of Herman Miller and the stylish Onyx color, this backrest is sure to enhance any workspace with its functional and modern design. This is a brand new and genuine product from Herman Miller.