1. [High-quality materials] The zipper bag is made of PVC, a soft and thicker material, woven style, waterproof, foldable and durable, can last for a long time and not easy to break. 2 [Product Size] The zipper bag set includes 15 packs. There are 3 sizes (A4 / A5 / A6). Our document bag can help to organize documents. 3. [Zipper Bag Design] The zipper makes it easy to take out documents. The smooth and strong zipper allows for extra durability, which can also be used as a lifting ring to hang the plastic zipper folder on the wall. 4. [Mesh Cross Design] The folder is translucent and easy to place documents. You can see what you put inside to prevent items from being lost from sight. The durable mesh protects the item and the bag from friction. 5. [General for Storage] This ziplock bag set is very useful in our daily life, suitable for children, students, office workers and other professionals. You can use them to store different types of objects, such as documents, paper, books and albums.