Prepare and package up your meals ahead of time. These food containers with lids will prevent freezer burn and any absorbing of other odors from the freezer. 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. The hard-plastic construction will no cracks or breaking along the way. The leak proof lids will tightly seal the food containers for meal prepping, preventing any annoying leaks or spills in your bag or freezer. To ensures this container set meets all your needs. Perfect for: packed lunches, takeout and delivery. Prep hot or cold meals: salad, sandwich, snack, fruit, dip, breakfast, lunch, dinner, leftovers, and kids meals. Prep meals worry free, our food prep containers durable design has a high tolerance for bending, twisting and temperature, plus our airtight, leak-proof lids seal tight, keeping your food safe and secure. Stackable and design allows for easy storage. Washable, reusable, and microwave safe. Containers can be reheated or freeze and withstand temperatures in the range of( -20C to 120C). Strong crack resistant material is dishwasher safe and can be washed in the top rack of the dishwasher repeatedly. Color: black Material: plastic Package Contents: 50 x Meal Prep Container Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.