Product review (2 stars): Good concept, but very serious problem
I bought two of these. They would be very useful IF they could actually adhere to the refrigerator shelf. But they don't. First, the suction cups are cheap plastic rather than rubber, and they easily lose suction. Second, when they do adhere, the whole drawer frame easily comes out of the suction cup. Finally, if your refrig shelf has a raised lip around it, the suction cup won't work at all.

I may try to to anchor these drawers with Velcro. Otherwise, they're useless.