Then you have a nice

A4 gold magnetic foil (not real gold but golden)

so only use a permanent marker if you need to write or draw something that will not need to come off

so you can drive a screw all the way through the rubber coating onto the other side if necessary

Undersænket pottemagnet, Ø48 mm. - Neodymium Auto-translated (EN) Then you have a niceA very strong magnet! Not a toy. Read the whole description before you choose to buy a strong power magnet. Diameter: 4. 8 cm. Height: 1. 15 cm. Screw hole: 8. 5 mm. Strength: approx. 87 kg. This countersunnk pot magnet can be fastened with a countersunk screw. A strong neodymium magnet encased in a steel cap (pot). This magnet is not suitable for magnetic glass boards as it's too strong. Recommend for indoor use. SPECIFICATIONS: Strength: aprox. 87.