The OXO Good Grips 8-Piece Smart Seal Glass Rectangular Container Set is a great addition to our kitchen for storing leftovers. My wife and I have tried many different storage containers. These are by far the best. They are easy to store in the cabinet. They save on space by fitting into one another. We were amazed how they are leak proof. Another great feature is they are freezer safe. Also, we can take them from the freezer and put them right in the oven without them cracking. We are totally satisfied with them. I would recommend the OXO Good Grips 8-Piece Smart Seal Glass Rectangular Container Set to all my family and friends.