Because of this

it will take a long time before the magnet strength capacity weakens despite surface rust

All you need to do is to clean the surface properly

Size: 50 x 350 mm

If a door is hanging on the hinges or your drawer won't close completely

Kraftig kontormagnet Sort, Rund hyldeforkant Because of thisBlack, round magnet. Very strong office magnet. Strength: approx. 1. 5 kg. (corresponds to around 12 A4 papers on a whiteboard). Now it is possible to buy office magnets that are both strong and nice looking. Diameter: 3. 26 cm. Height: 0. 9 cm. These "Boston Xtra" whiteboard magnets are covered by light yet solid ABS plastic, and are 2 3 times as strong as standard office magnets (ferrite magnets). Great colours and in a design that, apart from