Celtic glass Libbey cup 16oz great for all of your iced beverages. The cup is sturdy, durable and easy to clean. The cup come with a snug-fitting silicone sleeve to tightly seal in liquid which prevents leaks and spills. Care instructions hand washing only and not to soak the cup to ensure the quality of the glass, it is not microwave safe or dishwasher safe. Thanks for visiting my shop!!!