This clear PET lid fits our 32 to 48oz square fiber containers. These durable lids are made out of durable PET and are recyclable where accepted. The clear transparency makes this lid great for grab n’ go foods, or any application that requires the food to show beautifully through the top, catching the eye of a hungry customer. We recommend cold and warm foods only. Meals just out of the oven or frying pan may cause warping.