This Prepworks by Progressive collapsible over-the-sink colander features an innovative design that collapses flat for compact storage. Colander expands to 24 inches to accommodate most sink sizes. It can be used flat or expanded and it features non-skid feet to keep the colander in place while in use. The colander has a 6 quart capacity and measures 15-inch by 10-inch when closed. Dishwasher safe.