FOR FREEZING PRE PORTIONED FOOD:Each compartment of soup zer container has four fill lines: ½ cup, 1 cup, 125 mL, 250 mL,making portioning simple.With up to 4 cups of food storage,it's easy to ze leftover soup,pasta sauce,bone broth,juice,smoothies,porridge,cookie dough,large ice cubes,etc.Great for portion-controlled meals,leftovers,and meal prep..EASY TO RELEASE & CLEAN:Each cube compartment is separate from others and the silicone materials is ultra flexible so that whatever food item you were zing removes easily - simply push with your fingers from the bottom.Smooth silicone surface makes it easy to clean,dishwasher .REUSABLE &FOOD MATERIAL:Bangp 1-cup zer trays are made of professional food- silicone,BPA-.They are odorless, non-stick,leak-proof,and easy to clean.Our temperature resistant silicone makes them microwave and zer .Great for storing leftovers in the fridge and microwavable for when you are ready to enjoy your meal..EASY STORAGE AND STACKING:This sturdy, stackable design of our food zer tray helps keep your zer tidy and organized,saving space.And the steel reinforced rim makes the tray sturdy enough to transport it ly from the kitchen counter to the fridge.The transparent lids allow us to see the food inside ly,lock the fresh and clean..STURDY AND :Our zer containers for food are stable and , so no matter how long you store it in the refrigerator, it will not be damaged or cracked due to low temperature.