N40 Ndfeb neodymium neo big ring magnet

N40 Ndfeb neodymium neo big ring magnet N40 Ndfeb neodymium neo big ring more details as below: Material NdfeB Grade N40 Outer Diameter 53mm Inner Diameter 41.1mm Thickness 5mm Magnetizing Direction Axial Magnetization (Thickness) Plating Coating Nickel Magnet Weight 49.5g                              N40 D53*41.1*5mm neo big ring magnet more detailed photos: