Arc Bonded Neodymium Magnet 1.Dimensions: According to your requirements 2.Grade: BN-4,BN-6,BN-10 and etc 3.Max Operating Temperature: 120-160 degree celsius 4.Coating: Epoxy,Parylene 5.Magnetized: Diametrical,Width,Thickness 6.Advantage: Extreme resistance to demagnetization and complex shapes possible.