MATERIAL: Foldable PP plastic sheet, High specification materials and standards, safe and odor-free so that you can rest assured to use.SIZE: 9*6*0.8 cm(3.5*2.4*0.3 inches). The standard size is just enough to put down a disposable mask.PORTABLE: Foldable Design, easy to carry, help you store disposable masks at any time and put directly in your pocket or backpack.EASY TO USE: This disposable mask storage case is easy to use and reusable, should be cleaned in time after each use.PROTECTION: dust and moisture-proof, and can effectively prevent secondary pollution of the disposable mask.help you keep your masks clean and save resources.