With serving insert: 100% airtight and waterproof, even liquids can be transported safely, ideal for storing fruits, large vegetables such as cucumbers or leeks, sausage, bread, spices, cereal and eggs, with drainage grid The original: the LocknLock lid is secured with four safety locks and cannot open by itself; the double chamber seal closes the food storage containers securely Helper for kitchen and home: use the box as a lunch box; food box; or food storage container; the practical containers have been bringing order to the storage for more than 30 years BPA free: all containers in the PP Classic series are made of polypropylene, it is free from harmful BPA, all boxes are suitable for baby food, dishwasher safe PP Classic: the practical multi-functional boxes of the PP Classic series are stackable; create up to 40% more space in the household; there is the right format for every application; suitable for fridge and freezer;