Product Name: Projects with Neodymium Magnets Permanent Magnet Suppliers online Magnet Store Model NO.: GME-N50BLOCK Grade: N50 Coating: Nickel Shape: Block Application: Electronic Products, Speaker Magnet, Industrial Magnet, Jewelry Magnet, Solenoid, Motor Magnet, Generator Magnet Product Name: Projects with Neodymium Magnets Permanent Magnet Certificate: Ce/RoHS/SGS Tolerance: +/- 0.05mm Model Number: Gme-N50block Dimension: F50.8X50.8X25.4mm Working Temp.: 80 Degree Centigrade Magnetization Direction: Magnetized Through 25.4mm Transportation: by Sea, by Air, by Express Lead Time: 15-25days Payment: T/T, Paypal, Western Union Trademark: GME Transport Package: as Client's Request Specification: F50.8x50.8x25.4mm Origin: Zhejiang Ningbo/ Fujian Xiamen HS Code: 850511100 Product Description A permanent magnet is that a magnet that is permanent, in contrast to an electromagnet,which only behaves like a magnet when an electric current is flowing through it.Permanent magnets are made out of substances like magnetite (Fe3O4),the most magnetic naturally occurring mineral or neodymium, Samarium cobalt, a powerfully magnetic synthetic substance.