An Easy Way to View Magnetic Fields!
Available in three sizes - 4" square , 12" square & 18" x 36" sheet. This green 5 mil thick flexible film allows you to see the magnetic pole patterns on a magnet. The film can be used to check the shape of the poles of a magnet or magnetic assembly. Magnets are sometimes magnetized with multiple poles on a surface, and these poles can be shaped by employing a specialized magnetizing fixture.
Here’s how it works: