Works but weak magnet to

I won the following impressions:
The shipping was good as usual with Amazon, the wiping ability is given. While it could be due to the slightly lower metal layer in my whiteboard, but for me the whiteboard extinguisher does not stop by itself at the whiteboard. I was able to help me as I have attached two small but strong magnet under it, so that it stops this. That is why, however, only 3 out of 5 stars from me.

For the price I would have expected something more in total, but at least the design is responsive and he wipes properly.