These small but strong magnets are just what you need to convert your brooch or badge to a magnet instead of a pin finding! These little guys came in two round sections. One side has 3M adhesive attached to a metal disc that you can stick onto the back of your brooch or badge. The other side is another disc that has a strong little magnet inside.
To separate the two sections, you can apply pressure and slide them apart. Place the magnetic side inside your garment and then attach the brooch or badge to the outside of the fabric. You can either use the 3M adhesive, or for a more permanent and long lasting attachment, you can glue them on with a glue such as E-6000
Warning! Folks with pace makers or other medical devices that are sensitive to magnets should not wear these. You should also keep them away from kids and pets who might swallow them. Price is per magnet.
17 mm or about 5/8 of an inch wide.