Have 2 Duo Rollo Klemmfix in white ordered (width 100) it was one of the winding not quite straight. I only thought that gives the after is occasionally pulls up and down. This was unfortunately not the case, but it had to follow the the blind through this up and pull down broke and I have the shade below. Since it is completely broken, it can no longer use. However, you could now see exactly which substance would fastened above in shade was crooked set in. The other blind I possess is impeccable. As you could see the whole after assembly, it was hard to complain about anything. I can only say look at that shade before installation carefully.
