Very happy to add these cups to our collection of Stage 3 spout cups. These cups are perfect for our 2 year old as well as our 5 and 6 year olds. They are sturdy and spill proof. They travel with us everywhere and keep the contents cool for an extended period of time. Clean up is easy and don’t produce mildew as quickly as other products seem to do and if they do, it is very easy to clean up. Our family loves these cups!