These bowls are super durable. Even if they fall times they do not immediately broken (unless you have a man like me, it all gets small). A long time I had to look for a replacement. Am happy to have found this glass bowls again. Class bowls for food storage, freeze, bake, heat directly in the microwave in a single operation from the frozen state - no problem. Also cleaning is super simple - what is being baked, briefly soak in water and you can already wiping it. I can me no longer think away from my kitchen. I have a three-piece set - and I can really make good use of every size. Highly recommended!