Classic Tupperware Super Crisp-it lettuce keeper with a sheer base and White domed seal. The included insert goes into the bottom of the lettuce core to deliver air and keep moisture away from your head of lettuce, keeping it crispy and fresh. Exclusive lettuce knife included. Keep a full head of lettuce, cabbage or cauliflower fresh, dry and tasty. Includes lettuce corer, domed seal and core insert to drain away condensation. Snow White/Natural 3 qt./2.9 L. Dishwasher safe