In line with the legs on the magnet, mark cross-sections and cut the cloth.
Then pull the magnet legs so that they pass through the cloth and peek at the back side.
Put the metal counterclock on the legs, press against each other and pull the legs apart. Put the second part in the same way.
Diameter: 18 mm
Total thickness: 2,5 mm
Priced per pack. Each pack contains 5 sets of fasteners.