The 500 ml Square Airtight Jar is a high quality food storage container, made of sturdy plastic. This airtight container is ideal for keeping a variety of foods fresh and well organized, from cooked foods, pasta, vegetables, candies, fruits, to broth and coffee. Its hermetic design guarantees the freshness of food and its square shape allows efficient storage, making the most of space. In addition, these canisters are stackable for even more convenient storage. Importantly, they are BPA-free, making them safe for food storage.