Used item. Simple operation has been confirmed. [Product Overview] This is a set of 9 food storage containers from Shop Japan. FOSA Vacuum Containers (Square) ⚫︎Vacuum sealer x 1 ⚫︎Large container x 2 ⚫︎Medium container x 7 ⚫︎Large microwave lid x 2 ⚫︎Medium microwave lid x 5 ⚫︎Instruction manual [Features] Keeps easily perishable food fresh for longer! Prevents discoloration and keeps food looking fresh! It also helps to reduce "food waste" by preventing you from throwing away food that is still edible, mistakenly believing it has gone bad. [Included Items] An instruction manual is included, which explains how to use and care for the containers in detail.