Dowling Magnets Iron Filing Tubes, 1 Oz, Gray, Pack Of 12 Tubes
TUBE,IRON,FILLING,12-PK
Sprinkle a small amount of iron filings onto paper and move a magnet underneath to illustrate the pole patterns of the magnetic force field. Use the iron filings to view a magnet's invisible lines of force! Common-sense caution: do not inhale, ingest, or get iron filings in eyes. Ages 6/Grades K+. Includes 12 tubes total.