• Set of vacuum storage bags, made of durable plastic. • Reduce the size of your clothes, towels, or sheets by up to 80%. • Protect your belongings from moisture, dirt, mold, and odors. • Includes manual vacuum pump, compatible with any standard vacuum cleaner. • The sturdy valve and double-sealed zipper ensure the vacuum. • Pack of 12 bags: 3 extra-large, 3 large, 3 medium, and 3 small. • We recommend using a vacuum cleaner to quickly extract air from the large bags.