so they works best on whiteboards or metal boards

They are made of flexible magnetic foil with a special writable surface

*Thickness of the metal plate to achieve full saturation of the magnetic field so that it can achieve maximum strength

so it fits most cars

god køkkensaks eller en skarp hobbykniv (og evt

WHITE metal magneter, 4-pak engros so they works best onStrong white office magnets from Trendform, model WHITE. Perfect for both glass boards and when you need a really strong magnet for the office board. The magnets have an anti slip back so they will stay put on the board and won't slide on a smooth glass board. A bright white magnet will stand out on a black board and be neutral on a whiteboard. Color: White. Strength: approx. 1. 2 kg. Size: 23 x 9 mm. Made with a white metal cap and a strong ferrite