This was a fabulous find! I was getting tired of the plastic storage containers, food not staying fresh and the wear and tear that the plastic storage containers have. I came across these BPA free, oven safe, dishwasher safe glass food storage containers! They are wonderful, high quality storage containers that I recommend to everyone! They're extremely versatile as you can use them for food storage, baking, cooking and they are microwave safe! I love the lock features of the lids so all food has stayed fresher much longer than any other food storage containers I have tried. This is a great 18 piece set with extra large to small containers. Highly recommend this set!