... delivery & excellent service N42 8*8mm permanent super strong neodymium magnet These magnets will have approximately 5600 Gauss on ... sizes CustomizedShapeBar, Strip, Stick, Block, Sheet, Round, Disc, etc.MaterialsSintered Neodymium-Iron-BoronCoatingNickel,Zinc, Nickel+Copper+Nickel, ... .Neodymium (NdFeB) Permanent Magnet Available Grades in: N, M, H, SH, UH, EH and so on.Magnet N-( N35-------N50), ...