These 16oz/500ml rectangular microwavable plastic containers are made from food graded polypropylene(PP). They come with matching lids which fits snug and secure, ensuring that no messes or spills occur. Perfect for all of take-out orders, prepackaged meals, freezer storage etc. Ideal for appetizers, salads and entrees, fruits and so on. These containers are freezer friendly, use them for all of your food or fruit storage needs. They are grease and oil resistant. Both the container and the lid are microwave safe, allowing for convenient reheating without the risk of melting.?They are re-usable and recycable.