These durable & dishwasher safe airtight containers feat 4 Sided-Locking Lids with Silicone Seal. To ensure that no air or water enters in, keep your cereal dry, safe from moths, ants and other pests, and keep your food fresh longer. With a hole in the lid, you can pour the food out easily without opening the lid. To enhance the sealing capabilities of these plastic food storage containers, we add the silicon seal around the flip lid opening. Our airtight containers are designed with comfortable ergonomic grips, you can hold the container effortlessly even it’s full.