Tupperware Super Crisp It Lettuce Keeper Container Bowl with White Seal. Crispy, crunchy, delicious! Keep a head of lettuce, cabbage, or cauliflower crisp with a specialty seal and a spike insert grid that allows water to drain off and air to circulate. Includes 3-Qt./2.9L container with spike insert and domed seal. BENEFITS Clear container: easily identify contents; it will protect contents from getting squashed or bruised Domed seal: extra space for shape of lettuce, cabbage, and cauliflower Spiked insert: fits into bottom of container to fix vegetable in place, holding it away from moisture Extends freshness: engineered to keep produce fresher, longer USE & CARE Wash before first use. Dishwasher safe Store unsealed when not in use. Approved for food use TW52