They can easily scratch the glass surface + they are slippery

It's important to let the glue dry for a minimum of 24 hours (optimal drying time is 72 hours)

Countersunk hole: Ø4

whiteboard tavle

With a strength of 2

Power magnet, Skive 5x5 mm. magnetark-farvet They can easily scratch theNeodymium magnets Permanent magnets Diameter: 0. 5 cm Height: 0. 5 cm Strength: approx. 900 gr. These small, yet extremely strong magnets adhere to all magnetic surfaces, and they hold up things many times their own weight. So now you don't have to worry about your papers falling off the fridge. This size of power magnet is not suitable for glass boards. SPECIFICATIONS: Strength: approx. 900 g. Material: NdFeB Magnetisation: N45 Gauss: 13200 13700 (1.