Healthier, fresher and easier to use, Emsa Clip & Close Containers were developed by German engineers in response to consumers' wish lists for the ideal food storage container. With convenience you'll appreciate every day, Clip & Close is freezer, microwave and dishwasher safe, so you can prepare, store and serve in the same container. Made of BPA-free materials, Clip & Close food storage containers are even certified safe for baby food. The Clip & Close seal and lid are inseparably fused together so no dirt, or bacteria can be trapped underneath the seal. With the Clip & Close Exclusive sealing system, each piece is 100% sanitary, 100% leak-proof and 100% airtight. For anything from freshly cut fruit and salads to marinades and leftovers, the innovative design keeps flavors and aromas inside the container when they belong. Containers are light and unbreakable, superior for carrying snacks and meals in purses, backpacks or picnic baskets. Know exactly how much you are storing, markings for ounces/cups/liters are on every base. Containers nest and stack for compact storage.