Upgrade your food storage game with the Pyrex Red Round 2 Cup Storage Jar 6 ct. These durable containers are designed to perfectly fit your Pyrex 4-cup square dish, ensuring a tight seal every time. Whether you're reheating leftovers in the microwave, storing ingredients in the fridge, or freezing meals for later, these storage jars can handle it all. Plus, the vibrant red color adds a pop of style to your kitchen storage collection. Say goodbye to flimsy containers and hello to reliable, long-lasting storage solutions with Pyrex.