Product review (5 stars): Just what I was looking for
These pans are the old-fashioned microwaveable material that are hard to find. They are versatile and durable. I expect them to last forever. I have some very similar square pans that are at least 30 years old that we use constantly, and we now also use these round ones all the time. Both the pans and the lids can go in the dishwasher, although I put the lids on the top rack. Although they are relatively expensive for microwave pans, they are really a great value. One of the reasons I'm an Amazon fan is that it's so easy to find relatively obscure items such as this, without running around to numerous stores. Thanks, Amazon!