The items for sale are storage containers and a vacuum pump. These are storage containers that can be vacuum-sealed. You create the vacuum using the pump. There were two containers, large and small, but I replaced the large one because it cracked when I heated it in the microwave. The small container in the photo was used a few times to store vegetables. The container capacity is 350ml. It is rated for -40°C to 100°C. I am open to requests, such as selling items separately. Please feel free to comment.