Magnetic Field Viewing Kit with Steel Filings, Pack of 3
$ 22.47
Mess-free! Steel filings are safely sealed in a scratch-resistant, transparent viewing tray for your investigations. Each kit includes rubber-coated magnets (0.75" disc magnet and 1" bar magnet) and filing-filled tray measuring 3.44"D. Sold as a pack of 3 kits. Ages 8+/Grades.