United Scientific Magnets, 6\ Alnico Bar, Set of 2
- Includes 1 scratch-resistant display tube with encased steel filings, 1 alnico cow magnet, 1 rubber stopper to hold the cow magnet inside the tube, multilingual activity booklet, and a storage container with lid..
- This new and improved version of our Mysterious Magnet Tube is better than ever! How is it better? It features scratch-resistant plastic (new tube material) and steel filings (not iron) for stay-clear viewing! Also, the patterns created by the new (sparkling! ) polished steel filings are unique and simply beautiful--can't compare to patterns created by iron filings!.
- Filings are completely encased in plastic--no mess!.
- View magnetic fields up close. . . and in 3-D!.