The Herman Miller Mirra 1 Office Chair in Black/White is a sleek and ergonomic operator/task chair designed for maximum comfort and support. With features such as tension control, seat height adjustment, seat tilt, armrest adjustment, and a variety of ergonomic design elements, this chair is perfect for long hours of work. The chair's frame is made of durable plastic, with a graphite main colour and a mesh seat for breathability. With a maximum weight capacity of 100kg, this fully assembled office chair is a stylish and functional addition to any workspace.