From oven-baked lasagna to weekday meal prep, the Kook Glass Storage Container Set is designed to cook, bake, serve, store, and reheat with ease. Each container is made with a durable borosilicate glass base and a tempered glass lid with an airtight silicone seal to help lock in freshness. Built-in steam release vents make microwave reheating safer and cleaner, while the stackable design keeps your fridge, freezer, and cabinets organized.