Type:Permanent Composite:NdFeB Magnet Shape:Block Application:Industrial Magnet Color:Bright Silver Coating:Ni-Cu-Ni Material:Neodymium Iron Boron Grade:N35-N52 (M.H.SH.UH.EH.AH) Size:Customized Magnet Size Certification:SGS Tolerance:0.05mm ~ 0.1mm Magnetism direction:Thickness Product Name:1 inch heavy-duty neodymium rare earth large cube magnet n52