Cielob automatic canister (automatic vacuum storage container). This is a new, unused item, but please understand that it has been stored at home, so there may be minor scratches or scuffs on the lid and other parts. Vacuum sealing is easily done with a single push. It reduces oxidation of food and keeps it fresh. It's popular for storing coffee beans, tea leaves, nuts, and other snacks, as well as pet food. The charging adapter is not included from the beginning, so please purchase one at Daiso or other 100-yen shops (most households probably have an adapter already). It's popular on Yahoo! Shopping, Amazon, and in specialty stores. I received this as a gift, so I don't know the details other than what's available online, but if you know more, please feel free to ask.