[Microwave, Freezer and Dishwasher Safe] The lunch box is dishwasher safe and also microwave and freezer safe. Note: Please take off the cover when heating in microwave oven. [Safe and Reusable] The food container bowl with lid is made of high-quality silicone, which is odorless, not easy to break or rust, reusable and has a long service life. [Sealed Storage & Stackable] The collapsible bowl's fixed lid helps prevent leaks and dust, foldable and stackable helps you save cabinet space, and it's also convenient to carry food if you're out on a trip or camping. [4 Different Sizes] You will receive 8 pieces of round and square collapsible food containers with lids, the capacity is about 350, 500, 800, 1200ml, various sizes can better meet your food storage needs and keep food fresh. Ideal for storing lunches, cereal, salads, vegetables, fruit, and leftovers in the freezer. [Multifunctional] The collapsible fresh-keeping bowl can be widely used in kitchen food storage, outdoor travel, camping, hiking, family picnic, self-driving trip, and can also be used as a lunch box for children or office workers.