N52 Super Strong Rare Earth Neodymium Magnet Blocks Squares Thin Small Large

Grade N52 Super Strong Rare Earth Neodymium Magnet Blocks. Block 3mm x 3mm x 0.5mm thickness - grade N52. Block 3mm x 3mm x 1mm thickness - grade N52. Block 3mm x 3mm x 2mm thickness - grade N52. Block 4mm x 4mm x 0.5mm thickness - grade N52.