Rectangular self-adhesive magnets are incredibly versatile and their size and strength makes them a really popular choice. Every magnet combines the strength of quality neodymium or flexible magnets with the convenience of 3M self-adhesive. These magnets are all incredibly thin which means they can be easily concealed between card, paper or material. Theses magnets are regular used in creative applications, because they are so discreet you won't even know they are there.