Dowling Magnets Mysterious Magnet Tube, 3 1/2inH x 3 1/2inW x 5inD, Grades 1-8

Teach kids about the power of a magnetic field - without any mess Use a magnet to create gorgeous 3-D patterns in iron fillings. Insert the magnet into the center chamber to start moving the filings. Sealed plastic display tube allows 360 deg. viewing with no mess. Includes a display tube with encased filings, an alnico cow magnet and a multilingual activity guide.