The pins:
The pens write well, unfortunately slipping the tip in some out and expressed in writing back in, but that was not for me annoying. One has unfortunately given up the ghost after a week and writes nurnoch very poor, the other holding but NCH, perhaps I had with the bad luck.
The sponge:
The sponge is magnetic and holds up well, it can accommodate 2 pins. I can not complain about the cleaning, is wiped 2-3 times over the text and it's gone. If you write a lot and therefore wipes much entseht after some time a kind of "film" on the board, but auffält only upon closer inspection, you have to wipe a little more often or use a feuschten a cloth, then go back.
The magnets:
The magnets are ok, nothing special. a piece of paper they keep well when it is it folds in the middle more difficult, they do not keep time and again. Should let you fall down they do not, one has dropped me on the carpet, while a magnet is detached from the plastic bag.
Conclusion: they are fine for home use and as a starter set, the 4 stars there for good value for money, as it would otherwise pay alone for the markers in 4 colors all right 10. For professional purposes or the university I would, however, leave it alone.
