Grain oriented silicon steel is a special kind of electrical steel material. A special process is used in its manufacturing process to make the grain orientation in the steel more orderly, which improves its magnetic permeability and magnetic saturation,
50 PCS units: 10 x 10 x 10 mm35 PCS flats: 100 x 100 x 10 mm70 PCS rods: 10 x 100 x 10 mm-For use with 1-5 students.-Came with a cardboard storage box.