Magnetic Field Projectual 2D, Demonstration Size.

Study magnetic lines of force from afar. Perform experiments that everyone can see. Visualize magnetic lines of force in two dimensions. Our transparent case contains iron filing in transformer oil. When near a magnet, iron filings line up along magnetic lines of force. 16 x 9 x 1cm in size with reusable styrofoam pack. Great way to teach kids about polarity. (Magnet not included.)