FOSA Vacuum Sealer Main Unit Small Container 2, Medium Container 3, Large Container 1 Vacuum Bags ML 10 each, Total 20 Attachment 1 9-piece set, price reduced. It's very useful because you can put ingredients and food in either containers or bags depending on what you're making. The bags can also be used for freezing, and you can wash and reuse them many times. My favorite thing to use it for is bean sprouts. They last a week in the refrigerator when stored in the container. It's convenient because bean sprouts get soggy so quickly.