This hard shell carrying case is designed to fit the Canon EF 400mm f/4.0 DO-IS USM lens with ease. It features a sleek gray exterior and is manufactured in Japan to ensure quality. The case is spacious enough to accommodate lenses up to 11 inches long, making it ideal for photographers on the go. It also includes a handle for easy transport. This case is perfect for storing and transporting your Canon lens safely and securely. Its durable material and high-quality construction ensure that your lens will be protected from damage while in transit. Whether you're a professional photographer or a hobbyist, this case is an essential accessory for anyone who wants to keep their equipment in top condition.