"Bag isn't its best feature."
I agree with most people when they say that the bags break easily, but I recommend using a disposable piping bag, (which are strong enough to re-use) - I suggest the disposable icing bags (Ref 2664).On a different note, the piping tips are very easy to use and the case helps keep things organised. Some people say that they're having a hard time finding out what most of these pieces do: I instead of guessing what these pieces do, look on the internet for different piping techniques, and when you find one you like, just use the appropriate nozzle in the kit! It's so simple!So although the title of this item is "Complete decorating set" - I recommend just using the nozzles and investing in some disposable piping bags.