SET OF 4 Our Silicone food storage containers are the easy way to store food and reheat leftovers. They collapse to a compact size, too. Use them as lunch boxes in the classroom or office, meal prep containers, and the perfect leftover container. Great for vegetables, fruits, and cereals. Stored foods stay fresh! BPA FREE Featuring an airtight plastic lid, these food grade containers are not your grandmas Tupperware set. Not only are they non-toxic, odorless and tasteless, they are non-stick and easy to clean. Well say it again: non-stick. COLLAPSE & STACK Each of the 4 graduated size containers collapse to 1/3 their original size. Nest them open or collapse and stack to less than 4.5 tall. The rectangular food containers fit in almost any kitchen cabinet or drawer. MICROWAVE FREEZER & DISHWASHER SAFE They feature snap on, clear locking lids with a heat vent for the microwave. Store leftovers, then go from fridge to microwave or freezer to microwave to quickly warm