INCLUDES: 3 FOSA Reusable Medium Containers; 34 oz (Dimensions 8.15 by 5.4 by 2.9 inches) Vacuum unit sold separately KEEP FOOD FRESH LONGER: Reduce waste; preserves nutrients, flavor, and longevity of your food with the easy to use vacuum system. By removing most of the Oxygen you reduce the speed of oxidation. Container is only working with FOSA vacuum pump only CLEAN AND ORGANIZED KITCHEN: Durable BPA free food grade plastic reusable containers are designed to be used again and again, and offer convenient stackable storage to create a clean organized kitchen space CONVENIENT AND EASY TO USE: FOSA vacuum pump quickly removes oxygen from the Containers with the press of a button. Designed to fit all FOSA accessory containers and bags. Its sleek compact designs allows for easy storage EASY TO MAINTAIN AND CLEAN: The vacuum pump requires 4 AA batteries (sold separately) and the containers are all dishwasher safe