Usage Tips:Product 1.Value Set Set of 4 Silicone Collapsible Food Storage Containers ,which is perfect solution for a wide range of foods storage, you can choose the size to take bento lunch,fruits,or most snack,etc to school ,office,or outdoor activities.2.Collapsible For Easy StorageRectangular food containers for meal prepping collapse to 1/3 their size with nesting design for maximum organization. Fits into almost most kitchen and pantry compartments or any cabinet or drawer.3. Special Design The snap on lids create an airtight vacuum seal that will keep your food secured and fresher longer. Our lids also feature an air vent for convenient microwave heating.4.Save More space Collapsible & stackable food storage containers allow for optimal minimalist organization, and fit neatly into nearly most size cabinet or drawer. Expand silicone containers to utilize for meal prep, saving leftovers, or cooking & baking. You can even use it as your favorite lunch box5.Durable,Safe &Temperature ResistantDurable, this very silicone bowl performs well in microwaves and refrigerators, just remember to pull up the airtight button on the lid before putting into a microwavefreezer and dishwasher safe. They made from made of food-grade silicone.Easy to clean