I'm on an anti-plastic binge so I love these. I bought them individually 6 years ago, unfortunately, they are only available as a set now but glad they aren't discontinued. The lids are so much easier to use than the Pyrex hard plastic lids which are hard to remove sometimes. I went from them to these and love these. I hand wash the lids so they have kept up well; Pyrex claims they can be put into the dishwasher but I am usually hand washing something else anyway.