Stackable lids - perfect for nesting of lid & containers, optimised for neat organisation and storage.  Easy to read matching letters on lids to easily match correct lid to the correct container.  Capacity markings - the days of guessing the capacity are no more, with the new NestnLock range there are clear markings on the side of the containers to assist you. Made from BPA-free material, these containers feature a four-side locking system lid, ensuring strong water and airtightness to help keep food fresher for longer. With a lifetime guarantee, the new LocknLock NestnLock range is a must have for any kitchen.