This mask case is ideal for storing masks. It is just what you need to keep your masks safe from pollutants or allergens. Size: 18.5x11x1.2 cm. Light and portable, easy to carry. Can be used at work, school, travel, camping, hiking, and other outdoor activities. Built in Baffle: Double baffle to prevent the mask from falling, It can store 3 to 4 masks.Flip and Snap Design: The mask storage box is designed with a flip cover, which is easy to access. The double snap is easy to close and open.