Electric Vacuum is NOT included 3 Bag Sizes: 7.9' x 8.9' and 10.2' x 13.6' and 11.8' x 19.1' Vacuum preservation technology ensures your food stays fresh longer by delaying oxidation, thereby retaining its original flavor and freshness Designed to save space and its stackable design makes your storage area tidy and efficient Crafted from food-safe materials that are BPA-free, resting assured knowing your food is stored safely The bags can be reused after washing and drying