The New Herman Miller Aeron Size B Back Rest is a high-quality replacement part designed for the Aeron office chair. Used in great condition. No rips or tears – some signs of wear, but anything concerning is pictured. Some wear on the bottom left. Made by the reputable brand Herman Miller, this back rest is specifically tailored to fit the Aeron model, ensuring a comfortable and ergonomic seating experience. The sleek design and durable construction make it ideal for office use, providing support and stability for long hours of sitting. Upgrade your desk chair with this reliable and stylish back rest for improved posture and overall comfort.