Neodymium Adhesive Block

 Neodymium adhesive magnets are magnets with a strong glue on the bottom, which allows the magnet to be fixed on any flat surface, especially on paper or cardboard, even if it is not metallic.  The adhesive foil is made of 3m and makes the adhesive magnet more versatile and has more uses.

Neodymium Adhesive Block - Strong Magnets