This is the thickness of the material: 80 micron = 0

and 5 pieces have the South polarity

The product is also known as "Element Board"

Magneter til at sy i tøj

Gummimagnet, Gul 17x12 mm. knivskinne This is the thickness ofYellow rubber magnet suitable for magnetic glass boards. Strength: 4. 3 kg. Width: 1. 7 cm. Height: 1. 2 cm. Colour: Yellow Because this neodymium magnet is rubberised, it can be used outdoors and in wet areas. The magnet might leave a bit of colour on your magnetic board if pressed against the board. But no worries! Stains can easily be removed with a wet cloth. SPECIFICATIONS: Strength: 4. 300 g. Material: NdFeB Magnetism: N45 Max. temperature: 80C