Elevate your workspace with the OEM Herman Miller Classic Aeron Size B Seat and Back, a seamless replacement designed to restore your chair to its optimal comfort and style. Crafted with the renowned quality of Herman Miller, this medium-sized seat and back assembly is built to fit flawlessly with your existing Aeron Size B office chair. Proudly made in the United States, this replacement part ensures you get the original experience of support and ergonomic design that Herman Miller is known for. With this durable and stylish upgrade, your desk chair will look and feel like new, providing you with the perfect posture and a sleek, professional appearance.