This is the perfect set for any kitchen! It features 18 pieces that are truly durable & seal! The seals have 4 corner locks and you can actually hear the seal air lifting when you open the container! They are also dishwasher safe, microwave & freezer so they have so many uses! They also coordinate the sizes of the containers by colors so it’s easy to organize these back in your kitchen shelf when they are clean. I love the set and feel it has great quality!