VERY STRONG Neodymium Disc Magnets 20mm x 3mm N42 Rare Earth Magnets UK
Very Strong 20mm x 3mm Disc N42 Neodymium Magnets. N numbers range from N27 - N52. Neodymium is about as common as tin or lead. Neodymium Magnets. Never allow magnets to jump together or to jump to steel as they will likely shatter.