Kaki-shibu (persimmon tannin) water-repellent rice bags are rice bags dyed with persimmon tannin. Proven to keep the taste of rice for 3 years at room temperature, without the need for electric refrigeration. These are for 20kg of rice, so I think they are a size that is easy for women to move. How about them for disaster preparedness? Three unused bags for 20kg of rice are available. There are also two used bags, so please let me know if you would like them included. Instructions for use will also be included. These are items that have been stored for a long time, so please understand this before purchasing.