Health And Safety: Lunch Box Is Made Of High Quality Food Grade Silicone, Bpa Free. Suitable For Microwaves And Refrigerators, Safe Materials | | 4 Various Sizes: 4 Sizes Meet Your Different Needs. Small-350 Ml, Medium-550 Ml, Large-850 Ml, Extra Large -1250 Ml. Perfect Silicone Lunch Box Tupperware Set For Leftovers, Take Out Or As Meal Prep Container. These Lunch Containers Are Great To Prepare Nuts, Fruit, Soup, Candy, Sandwiches, Salads, Pizza Or Meals | | Valve Design: Hot Gas Can Discharge And Water Vapor Will Not Form In The Lunch Box. So Not Suitable For Liquid, Such As Water And Soup Which Can Leak From The Valve. And When Using Microwave Oven, The Breathable Valve Needs To Be Pulled Up | | Save Space: Collapsible And Stackble Design, Save More Than 60% Space For You. No More Cluttered Tupperware Cabinet! Silicon Storage Containers Is Easy For You To Storage And Save You A Lot Of Space. Microwave, Freezer And Dishwasher Safe. It Can Be Folded To 3 Cm Thick Whe.