Keep Fruits and Vegetables Fresh: The storage containers with Lids have vent system which can regulates the flow of air in and out, control the humidity inside of vegetable keeper, help prevent spoilage, keep fruits and vegetables storage longer in the refrigerator Refrigerator Organizer: Stackable Storage Containers can save a lot of space in the fridge and easily organize your fridge, kitchen, pantry to store foods. Perfect for most refrigerators, freezers, cupboards and drawers. Quality: High quality, Made from durable food grade PET material Pull-out design: Pull-out designed containers for fridge help you maximize space and keep items organized and easy to take. PLEASE NOTICE: ? Range of temperature?-20°C~80°C. Not for microwave, oven or dishwasher (Clean with mild soap and water).