Neodymium disk magnet, Grade 35, Diameter: 0.5 inch, Thickness: 0.25 inches, Weight: 0.013 Lbs, are made from the most powerful magnetic material in the world, are composed of neodymium, iron, boron and a few transition met
Neodymium disk magnet, Grade 35, Diameter: 1 inch, Thickness: 0.75 inches, Weight: 0.157 Lbs, are made from the most powerful magnetic material in the world, are composed of neodymium, iron, boron and a few transition metals,
Rare Earth Magnet, Strength: 0.395 Tesla/3,950 Gauss, set of four ceramic, grade 5 magnets is ideal for use in constructing the alternator used in a variety of wind turbine kits, Compatible with Variety of Windmill Kits, Size: 1.875in x 0.875in x 0.375in thick