I've been wondering about these.
https://www.amazon.com/Kitchen-Drainer-Multipurpose-Silicone-Vegetable/dp/B01MG43CDU/ref=sr_1_2?ie=UTF8&qid=1485237077&sr=8-2&keywords=dish+drain+rack+metal+folding
It is metal bars that go across the sink, silicone connecting them together, it rolls up out of...