The Fresh & Save vacuum lunch boxes are designed to work with Zwilling’s vacuum pump so you can enjoy fresh food wherever you are. Prepare healthy salads, colorful grain bowls or delicious soups the night before or even days in advance. This lunch box is easy to useto reheat your food, simply place the unsealed container in the microwave. This lunch box comes equipped with a handy compartment divider, ensuring your foods stay separated and as fresh as the moment they were packed.