As such, the magnets are great, nice and small and just as I had imagined. Unfortunately, they are liable not good on my glass magnetic board. I have to make another 3 to magnets to 1 sheet. that's too bad. It could of course also on the glass wall I do but do not know, since larger magnets are also liable. Since I was very happy in such a small ultra-strong magnets unfortunately only 3 stars. 5