These are box-type disposable masks (all black). They seem to be sized for toddlers to lower elementary school children. They are individually packaged and all unopened. Please refrain from purchasing if you are concerned about home storage. Thank you for viewing. KF94 masks are non-medical masks boasting a 99% bacteria removal rate, providing high protection performance with a multi-layer structure. - Model: KF94 - BFE: 99% - Type: Non-medical - Package contents: 1 mask per pack - How to use: Instructions on how to wear the mask are included - Features: Multi-layer protection structure ↓↓Please read the following↓↓ Smokers → There is a smoker in the family, but we take care to keep the items away from smoke in a separate room. Pets → None All items are stored at home. Regarding price reductions, we set the price considering the quality, packaging, and market price, so we will decline any requests. We cannot accept returns or complaints if you haven't read the product description. Packaging may be reused. We will clean and package the items carefully and ship them as compactly as possible. Please comment if you would like to combine with other items for sale. Also, we try to respond to comments and ship items as quickly as possible, but there may be delays due to housework, childcare, and work. Regarding shipping, we basically use Yu-Yu Mercari delivery. We will ship within 1-3 days, excluding weekends and holidays. Thank you for your understanding.