The magnet is only protected by a thin layer of nickel

Often used by companies and institutions

That is equivalent to an A4 size

at det udvendige gevind ikke er lavet af rustfrit stål

BLACK metal magneter, 4-pak Auto-translated (SE) The magnet is only protectedStrong black magnets from Trendform, model BLACK. 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. Color: Black. Strength: approx. 1. 2 kg. Size: 23 x 9 mm. Made with a black metal cap and a strong ferrite magnet. Normally, we don't recommend using ferrite magnets on glass boards, but the anti slip