Sphere/Ball Neodymium Magnet 1.Dimensions: Customized / Produce according to your needs 2.Materials: NdFeB,Grade N35 to N52 (M,H,SH,UH,EH AH) 3.Plating/Coating: Nickel,Epoxy and etc. 4.Magnetization direction: Diametrical magnetized 5.Max operating temp.: 80 to 220 degrees celsius High grade of sphere NdFeB magnet usually use for the industrial application.