however if you need to use it for glass boards

The white magnetic foil is 30 mm (3 cm/1

Material: Plastic shell

so they can also be used by children

You can even use magnetic foil to hang posters without the need for nails and screws

Stærk symbol-magnet, Rød Rund (4) Tier1 however if you need toRed magnet with the number [4]. Round, red symbol magnets with numbers are perfect for the office but also for school purpose (makes learning math a little more fun). Makes it easy to see from a distance to mark a date, a sequence etc. on the whiteboard or blackboard. Diameter: 3. 26 cm. Height: 0. 9 cm. Strength: 1. 5 kg. Color: red with white printing The prices are unit prices. Volume discount available. The magnetic symbols are printed on demand.