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. These lunch boxes are easy to useto reheat your food, simply place the unsealed container in the microwave. These lunch boxes come equipped with a handy compartment divider, ensuring your foods stay separated and as fresh as the moment they were packed.