The mesh bag is made of ABS material, which is safe and environmentally friendly. This mesh material is very thick, waterproof and dustproof. Waterproof bag can be reused 6 colors of mesh bags. Our zipper file bag has 6 sizes (A3: 43CM x 30.5CM, B4: 39CM x 28CM, A4: 34CM x 24CM, B5: 29CM x 21CM, A5: 23.5CM x 17CM, B6: 13.5CM x 19.5CM, A6: 12CM x 16CM, B8: 9.5CM x 13.5CM) The pencil bag has moderate transparency, which can prevent your privacy from leaking. But the content is still visible, you can find things without opening the zipper bag. The metal zipper provides you with sturdy use and service life. It can also help your child organize toys and school supplies The file bag has a zipper switch, which can be used for purposes according to your needs, helping you organize files and deal with confusion. Very suitable for school, home, office or travel use Colour:As Shown Material:ABS Package Contents: 12 x document pockets (A3, A4, B4, A5, B6, A6, 2 each) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.