EAKPROOF & DRUABLEAdvance meal food prep, diet portion control, healthy nutritious meals and to-go meals are super convenient to prepare in these durable food containers for meal prepping. The hard-plastic construction will ensure no cracks or breaking along the way.The leak proof lids will tightly seal the containers, preventing any annoying leaks or spills in your bag or freezer. MICROWAVE NOTEThese containers cannot be placed in the oven.Frozen food must be thawed before reheating.If there is too much oil, fat, sugar, or salt in the food, please do not use these bento lunch boxes. If the heating speed is too fast, the temperature of these foods may exceed 100C / 212F. When using a microwave oven, be sure to open the lid. When using a 1000-watt microwave oven for heating, do not use more than 80% of the power. FREEZER HEALTHY FOOD STORAGE BOXPrepare and package up your meals ahead of time.These food containers with lids ensure that your prepared cooked meals retain their flavor, and color.NOTE: When freezing, do not try to squeeze it into a narrow space, otherwise they will break. Before removing the cover, make sure that it has been thawed, although a small amount of warm water will balance the air pressure, so you can remove the cover. PREMIUM MATERIAL-REUSABLE & RECYCLABLE This lunch boxes with containers made of Food-Grade PP material , BPA-Free.You can reuse these durable containers as many times as you like.If you dont want to reuse them you can simply throw these containers into a recycling bin or trash. 50 PACK TAKE-OUT BOX BULK (26oz / 750ml50 bottoms and 50 lids).It is convenient and fast to prepare school meals and working meals for busy families.Also great for Catering serivce -perfect for packaging food at your deli, kiosk, food truck, catering service or restaurant for to-go meals. they stack neatly on top of each other allowing for completely mess free transportation and making all your customers happy as well.