This is from the manufacturer Solis. I was using it with an adapter on the main unit of a vacuum sealer. The main unit broke, so I'm selling these as they are no longer needed. There are three boxes, one each of large, medium, and small, but I've collected more, so I'm selling the set of six shown in the photos. There are scratches on the sides of the large and one of the medium boxes, but they don't affect use. There may be other minor scratches as well.