Product Description Smart Lidz vacuum seal containers keep food fresher 5x longer with just a press- vacuum seal to store food and liquids, lock out air and seal in freshness.Replace all your bulky storage containers and messy kitchen wraps. Store food or liquids, reheat, or keep food warm while entertaining. Made from ultra durable space-age polymers, lids are refrigerator, freezer, microwave and dishwasher safe. Use on glass, metal, ceramic or plastic bowl or dish of any shape or size. Use again and again! Set of four. Keeping Air Out Keeps Food Fresher Longer Air is the enemy of food freshness. The oxygen and moisture in air cause food to degrade over a short time and lose flavor and nutritional value. The bacteria and pollutants in air further accelerate such degradation. Conventional containers and plastic wrap actually trap air inside with food. But the innovative Keepeez vacuum packaging process removes air from your existing dishes—or even cans or jars—when you press the LID's center, which seals dishes airtight. Its proven technology extends food freshness up to five times longer. The simple Keepeez LID is all you need to create an airtight vacuum seal for all your food and other perishable items. With Keepeez, you will: 1.SAVE MONEY! Since food stays fresher much longer, you can greatly reduce the amount of spoiled or stale fruit, vegetables, meat, chicken, fish, snacks, cheese and more 2.SAVE TIME! With just the push of your finger, Keepeez LIDS enable you to seal any food in its original bowls cans jars cups and more, saving you the time you used to spend transferring food to other containers and finding the right lids. 3.SIMPLIFY LIFE! Keepeez products are safe in fridge, freezer or microwave—simply wash them in a dishwasher or by hand. 4.AVOID MESSES! Rest easy with strong, leak-proof seals that keep liquids and food secure, so you never have to fuss with flimsy, disposable plastic wrap again. 5.SAVE SPACE! Keepeez LIDS enable you to stack any dishes—large or small, square or round—neatly in your refrigerator or pantry. Product Details Measurement: 52.5*39*53.5CM Pcs/Carton: 40pcs GW/NW:13.5/12.5KGS 1*20'Container:10200pcs