Iron based Nanocrystalline Toroidal Core is a specially developed soft magnetic material with low magneto traction having high permeability [150000]. The Nanocrystalline Toroidal Core comes with saturation flux density of 1.25t. The Nanocrystalline Toroidal Core works on a temperature range of 120 degrees Celsius and above. The Iron based Nanocrystalline Toroidal Core is available in widths of 5mm to 40 mm in steps of 5 mm and thickness varying from 20 microns to 30 microns.