Model Number:YSNEO-17Grade: From N35 to N52, N33M to N48M, N30H to N45H, N30SH to N42SH, N30UH to N35UH, N28EH to N35EHCoating:Zinc, Ni, goldBlock magnet, rectangular magnet, bar magnet, rare earth magnet, NdFeB Magnet, Neodymium-Iron-Boron magnet, u