This is a set of 3 Relevart clothing compression bags. These bags are easy to compress with just a light press ◎ They come with a slider for a secure seal. No vacuum cleaner is needed, making them convenient for travel, trips, and business trips. ■ Sizes (1 of each) S: Approximately 27 x 35cm M: Approximately 32 x 50cm L: Approximately 42 x 50cm Reusable. Can compactly store bulky clothing. Although new and unopened, there may be some scratches on the outer bag due to home storage. Please understand this before purchasing. Instant purchase is OK ◎