I ordered 28 of this to use for freezing food and they stack very nicely wasting less space than circle shape containers when stored. Also unlike the plastic containers, these pyrex glass containers are a winner when it comes to washing the grease of them! very easy to clean oily, greasy residue with the dish detergent. Only complaint I have about this product is the lid. They fit very loosely that I have to be careful not to lift the containers by only grabbing the lid part. Also the quality of the lid is cheap plastic material. If the company improves the quality and the size of the lid, I will buy more of this product.