This stylish and practical nautical-themed flask is designed to resemble a porthole. Made from polished stainless steel with a glass window, it can hold up to 4 ounces of your favorite beverage. The flask features a screw top that keeps the contents secure and the container leak-proof. With its easy-to-use and easy-to-clean design, you can easily view the contents and know when it’s time for a refill. It’s the perfect gift for someone who appreciates both style and functionality.