Store everything from cut fruit and snacks to sauces, stews, and soups with confidence using the Smart Seal 1-Cup Glass Round Container. Made from durable borosilicate glass, it moves seamlessly from freezer to oven or microwave without staining, absorbing odors or shattering. The interchangeable Smart Seal™ lid locks securely to prevent leaks and locks in freshness. Designed for versatility, the lid fits both OXO Glass Smart Seal Containers, while the removable gasket and a nesting design make cleaning and organizing effortless.