Love, Love, Love these! This is my second time buying these, my first set is still going strong and it’s a quite a few years old , I use these all the time for left overs . Cannot be used in freezer (go figure) hence why I bought another set a couple cracked around the top . Great space saving tool, and has measurements on the side of each , so also great for baking prep. The older set I keep in my pantry , and new set in my upper kitchen cabinet, perfect fit ! 
Highly recommend.