Explore beautiful 3-D patterns created by a magnetic field - mess free! Includes display tube with encased steel filings, Alnico cow magnet, and multilingual activity booklet. Simply Science Mysterious Magnet Tube, with Steel Filings Just insert the magnet into the center chamber. Package measures 5.
These inserts can also be provided with full traceability and conformity certificates.. Helical Insert, UNF 5/16-24X2D, PK100, Free Running, Material 304 Stainless, Length: 0.624", Right Hand Thread Direction.