You can get metal balls in different sizes here at Magnetpartner

Remember to use a thick piece of paper or similar between magnet and iron filings

krog: 7 cm

Precision positioning has never been easier

Power magnet, Stav 3x20 mm. knivskinne You can get metal ballsLong rod magnet with a strength of approx. 0. 4 kgs. The magnetism is axial with the magnetic poles on the flat sides. But this magnet is a bit special because it is more than 6 times longer than it is wide: it has a strength of almost 1. 5 kgs. on the sides. So the strength specification of this magnet is a bit misleading. Since this type of magnet is mostly used on the flat ends, we have listed the strength as the axial power of the magnet.