Discover a new frontier in freshness. “Lettuce” show you how! These air-tight containers extend the life of foods, so you can enjoy their freshness longer. The large domed container (5"H x 7¼"-diam.) is perfect for preserving lettuce and melon while preventing browning or discoloration from lack of moisture. Try the medium domed container (4"H x 4¼"-diam.) for storing tomatoes or onions to help keep them flavorful. Dishwasher safe, see-through plastic.