These pie plates are of top quality and made in France. All of them have a removable bottom and they come in all different shapes and sizes. Leila used them a lot of her books and programs over the years. The pie plates should be washed by handand dried gently with a towel after washing. Do not cut with a knife directly on the bottom without lifting out the pie first. A true classic in the kitchen that will last for many years if handled carefully.