Mysterious Magnet Tube with Steel Filings

Explore beautiful 3-D patterns created by a magnetic fieldâmess free! Sealed plastic display tube enables 360-degree viewing. Keeps iron filings clean and safe. Just insert the magnet into the center chamber. Includes display tube with encased iron filings, alnico cow magnet and multilingual activity booklet. Package measures 5.13âH x 3.5âD.