Lock & Lock - Classic Egg Dispenser (12 eggs)Lock and Lock's patented four hinge locking system with a silicone seal ensures the container is 100% liquid and airtight, keeping food fresher for longer Having passed 3 million times of a hinge working test, the flexible and durable hinge remains tight after repeated use Low permeability factor of containers ensures food stays fresher for longer than other brands Impact, scratch, heat and stain resistant material ensures the containers are long