Durable Material - The portable mask storage bag is made of high quality PP plastic, which is non-toxic and odorless, not easy to break or deform, dustproof and waterproof, perfect for storing disposable masks.Perfect Protection: The mask storage box with 3 buckles protects the face cover more effectively and better prevents secondary pollution of the face cover.It is dustproof, waterproof and moisture-proof.Lightweight and convenient – The mask box is light and compact.Equipped with a hanging buckle and lanyard, it is easy to carry with your bag and hang on your backpack, handbag or other places.THOUGHTFUL GIFT - The mask transport box in bright colors (pink, green, transparent white and fluorescent green), good looking and beautiful, suitable as a sweet gift for your family members, friends, classmates or colleagues, show them your care.Usage - Fold the foldable face mask twice along the clip, put your mask into the face mask box, fasten the three buckles, each case can store 1-3 face masks or 1 mask with valve.