[12 vacuum bags in 4 different sizes] 3x40*60, 3x50*70, 3x60*80, 3x80*100, 1 x hand pump. Thanks to the different sizes, you can transport not only smaller items such as bracelets, socks and shoes, but also things like blankets, pillows and winter jackets. [The good seal] The dust bag is equipped with a double zipper and a turbo valve with triple closure. You can suck out the air with a hand pump, electric pump, vacuum cleaner, etc. After vacuuming, air and other impurities will not enter the vacuum bag, which avoids moisture, insects and odors. [Save up to 80% space] Storage space is limited in all accommodations. By using vacuum bags, you can save up to 80% of the storage space. And especially with the changing of the seasons, housewives can upgrade their clothes and duvets. In addition, vacuum bags are also suitable for outdoor use. Whether you are traveling or on the go, you can pack more clothes and shoes in your backpack with a vacuum bag. The storage bags are made of colorful and odorless PA and PE materials, which is very elegant. In this way, they do not damage clothes, sheets, etc. The vacuum bags are also moisture-resistant, abrasion-resistant and durable, durable and reusable.