1. Material: Plastic 2. Capacity: Can hold 50 masks at a time 3. Size: Regular model: 18.5x12.3x7 cm, enlarged model: 22.5x12.5x8 cm 4. Smooth extraction, dustproof and dirt-proof, rounded corners 5. To avoid contamination of the bare mask after unpacking, keep it clean and sanitary, and use it more securely