This silicone "Steamer" is recommended as the Staff Favorite on the Sur La Table. The first thing comes to my mind after reading this is: Whatl? Then it was "Can't I do this with two large plates?"
Watched the video and enjoy
Lékué also offers other cookware. There is this Cook and Preserve Bag for $20.
The woman in the video used five of them in the refrigerator, which would cost $100.