This 4 Quart Food Storage Container (RFS4PP190) is ideal for keeping ingredients fresh and free from cross contamination in restaurants and commercial kitchens. It is made of durable polypropylene that resists warping and bending. It is also dishwasher safe, offering convenience for those who work with it. The container is round and stacks with similar containers, making it easier to handle storage needs. Quarts are marked in red lettering, so it is easy to see at a glance how much of an ingredient is being stored. This product works perfectly for storing grains, cereals, vegetables, soups, and other ingredients.