Despite the previous reviews I have ventured these parts to try it because I saw it as a practical addition to the food processor. Now I have a week in use and do not want to miss it. But shortly a report what happened to me: Have all parts equal unpacked and was very pleasantly surprised. The blades have a protective cover so that nothing can happen if they are not needed - very convenient and there since two piece with this is, it's always the case - despite me now almost daily Einsatz.Die glasses have a great size, because what fits in, at the same time not too large to sometimes in the refrigerator (always relatively full is) to disappear. The cup as well - just right from the size! Then the attempt to unscrew the glasses. And there was once a big disappointment. It did not work. I have seen inside myself again this pack and return the items. My husband has done it, but for me it was just too hard. But then two experiences: 1. Anyone who reads is a clear advantage, because in the instructions is expressly states that it is useful to moisten the seal with a little water or oil. 2. In addition, I now put the glass on the work surface to (a rag and cloth underneath) so that it falls again significantly lighter than in his free hand. Now it goes "like clockwork". In the morning prepare the cereal. Uuu cook The variety and the result just great lunch while eating. The apples in cereals will not mush, the onions are as hooked and this although I have not really had practice in it. But the information in the instructions are very helpful and you get out then but quite quickly, how long it takes something. For me, now a real "must" for food processor, which is thus in daily use.