Eclipse N109 Nickel Plated Rare Earth Magnet 1/4 Dia 1/4 High

Neodymium Iron Boron (Rare Earth) Is The Highest Strength Magnet Material Available. Because The Material Is Brittle And Easily Corrodes, It Is Generally Coated Or Supplied As A Magnetic Assembly. Rare Earth Magnets Are Best Used Where Space Is At A Premium Or Where A Very High Level Of Magnetism Is Required.