Onion & Tomato Fridge Keepers (2 Pack) Convenient, reusable, baggie-free storage for unused portions of tomatoes, onions, avacados, lemons, limes, and more Container has a snap-tight lid to seal out moisture and other refrigerator flavors. Durable, see-through polystyrene allows you to easily see contents. Extend the freshness with Stay Fresh! Top Rack Dishwasher Safe.