... 1.Material:Rare earth magnet 2.Shape:Disc,etc. 3.Grade:N35-N52,N35M-N50M,etc. 4.Coating: ... NiCuNi,Zn,etc. neodymium disc magnet Product Image Descriptionneodymium disc magnet1.Material:rare earth ,Neodymium -Iron-Boron2.Shape ... :Tile,Ring,Disc,Round,Block,Cylinder,Tile,Arc,customers3.Size:4X3mm,5X3mm,8X3mm, ...