12 oz Fine Iron Filings Magnetic Iron Powder for Magnet Education and School Projects - Discover The World of Magnetics & See Magnetic Lines of This Unseen Force & More ( One Pack ) 12 oz Bottle of Iron Filings, Magnetic Iron Powder, Great for Magnetim Experiment Show Your kids Magnetics & Forces Of Physics Dry & Clean Will Not Stain Metallurgical Industrial Grade, Clean and Dry Great For Experiments Even Adults Think These Are Pretty Darn Cool!