Now it was that time again - the four-pack was all and had to be renewed. I had bought this variety for the first time and was surprised at how well clean these brushes. A control is easily possible. Means Färbetablette from the pharmacy can make a direct comparison (I've previously not believed). The new brushes I bought only by chance (had degrees in the shop nothing else). Now they are reduced even in the price (16 euros) and therefore, for me there is no question about it.
Conclusion: I have had very good experience with this brush and buy them again at any time.