REINFORCED FRAME: The soup storage container is reinforced with a stainless steel frame for extra stability, the soup freezer cube will not tilt when you fill it with liquid food. You can place the freezer tray in the refrigerator without it tilting. PERFECT SERVING SIZE, EASY TO STACK: The soup silicone freezer tray has 2 fill lines: 125 ml/4 oz and 250 ml/8 oz in each separate compartment, making portioning broth, soup, sauce, and other measured liquid meals easier and more convenient. MULTIPLE USES: Use silicone food containers to freeze and store food in perfect portions. Suitable for freezing soup, leftovers, smoothies, sauces, broth, stew, ice cubes, baking, and much more. The transparent lid makes it easy to see the food stored inside. A must-have in every kitchen. LARGE FREEZER TRAY WITH LID: The reusable silicone freezer container for soup comes with clear, tight-fitting lids that provide an airtight seal that keeps your stored food fresh by preventing freezer burn and foreign taste while being easy to open. SAFE FOOD-GRADE MATERIAL: The food cube container is made of professional food-grade silicone material that is odorless, BPA-free, and safe for the whole family to use. The smooth silicone surface makes it easy to clean, dishwasher safe, freezer safe, and oven safe. Not microwave safe due to the stainless steel frame.