These expand to use and collapse to store colanders are ideal for any kitchen because after all, who couldn?t use a little more storage space? Perfect for straining or draining all sorts of foods. When collapsed, these colanders occupy only 1/3 of their original size. The rigid plastic rim and raised feet make the colanders easy to hold or to set in a sink. The durable rubber sides effortlessly collapse and expand as needed. The colanders are dishwasher safe.