I am very disappointed in the quality of these markers.

I bought them for adult coloring and reception I was satisfied: the colors are pretty and intense, they hold good in the hand and gave good results.
Yet this does only ten days that I used and the first already starting to drop. I counted almost five dead and I worry about the others. Yet I have always been cautious but closing the mines dried and unmade. The coloring becomes unpleasant to force to complete the drawing board.
I do not know if I came across a bad and / or old box or if the mark has nothing better to offer, but I find that paying that price for this result is the mess.