I asked for this attachment for Christmas and was so happy I received it.  The blades come in a case to keep them organized.  I watched a YouTube video to figure out all the things I could do with each of the blades.  I found that to be very helpful- easier than reading the owner's manual.  I have used it now for slicing (mushrooms, zucchini, potatoes), dicing (celery, onions) and shredding (carrots).  It makes all these jobs so fast!!!  Warning- obviously the blades are very sharp so be careful when cleaning.