Mask Size: 17.5 x 9.5CM (straps slightly short) This is a mask for women. Disposable, 10 masks * 10 sets. *No box included Medical Mask The antibacterial mask has a 4-layer structure and is sterilized. It prevents the entry of smoke, dust, and bacteria, and prevents the spread of dangerous diseases through the respiratory system. It is also effective during travel, in hospitals, and when working in factories with a lot of harmful substances. The air filter fabric is waterproof and breathable, and does not cause skin allergies. The nose bar is easy to shape, secures the mask, and fits snugly over the entire face. Durable straps and excellent elasticity provide a comfortable feel during use. Storage: Store in a cool, dry place. Shipping will be in simple packaging. Since they are not individually bagged, please refrain from purchasing if you are concerned about this.