Who wants magnets great attraction, it's no wonder. Those things keep as stuck! However, one should be the place of use premeditate well. With us they should keep only a few labels on a heater, at best, also a smaller stack, what our previous failed. However, the things very small and something of are strong, that you can hardly get your fingers from the magnetic surface down, let alone each other going, because the magnets attract each other already brutally. For us, the magnets were not suitable for the location and have therefore returned. The quality, however, is unimpressed good!