It works by making use of simple magnetism and distance but made for heavy daily use with a good protection of the magnet that also allows you to use it at high temperatures

Handy magnetic tape dispenser

as there is a very good self-adhesive surface on the front of the metal plate

if they are rotated to align the correct poles

BNT Kontormagnet, Grøn Ø30 mm. (6-pak) hyldeforkant It works by making useGreen office magnets from BNT office. These magnets are small and cheap board magnets with a strenght of 0. 3 kg. equivalent to approx. 3 pcs. of A4 paper on a magnetic whiteboard. Strength: approx. 300 g. Diameter: 3 cm. Color: Bright green Package: 6 pcs. You get a package of 6 green magnets, perfect for everyday use in the office or at home when you just need to hang a couple of papers on the fridge or on your magnetic board. These magnets from BNT