You are buying one 12 inch x 12 inch sheet of Magnetic Field
Viewer Film. The film is highly flexible and can wrapped arround
objects. The film can also be laminated. It is NOT currently
laminated. Encased within the green film are millions of Magnetic
particles suspended in oil. A Magnet will attract the particles
to the areas where the Magnet is the strongest - at its poles.
The poles appear dark green. Multiple pole Magnets such as those
on business card Magnets will display interesting patterns, such
as the example pictured below. Keep away from children,
pacemakers and other implants. Handle with care. Our magnets are
made for the adult inventor, manufacturer, researcher, DIYer,
problem solver, etc.