Edding is the reliable choice when you need a permanent and waterproof marker

krog: 7 cm

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

In each package you will receive both North and South polarity magnets

You can get metal balls in different sizes here at Magnetpartner

Power magnet, Stav 3x20 mm. knivskinne Edding is the reliable choiceLong 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.