Each piece is sealed and packaged individually, long shelf life, hygienic convenience, easy to use and not waste. Small size, portable protection, instant disinfection. After using this product to wipe and disinfect, it will completely evaporate without residue in about 30 seconds. It can be used for cleaning and disinfection of keyboards, mobile phones, office supplies,carry-on items, tableware, etc. Outdoor tourism, camping Emergency wound disinfection. It is great for first-aid kits, clinics, home use. Strong bactericidal action against bacteria on the skin surface, protect your body and your health.