38 oz rectangular containers are made from PP. These containers are 100% recyclable where available and are still light and strong like plastic. This container comes as a combo with a clear, tight-fitting lid for product visibility and protection! They are dishwasher, microwave, and freezer safe, allowing for plenty of reuse prior to recyclable disposal. Perfect for hot or cold foods such as pasta, salads,  sides, and desserts for grab-and-go, to-go, and delivery. Great for the environment and business, impress your customers with your commitment to green packaging!