... 1)Material:sintered NdFeB magnet 2)Garde:N35-N38-N40-N42-N45-N48-N50-N52 3)Nickel,Zn etc coating Neodymium Magnet 2" diameter x 2" thick ... ,Zn,Black Expoxy,Black Nickel,Ag,AU,etc .6)Application:Acoustics,Motors,Windmill,Transportation,IT industryequipments,Home appliance ... ,Zn,Black Expoxy,Black Nickel,Ag,AU,etc .6)Application:Acoustics,Motors,Windmill,Transportation,IT industryequipments,Home appliance ...