5PCS Neodymium Block Magnet 50 X 25 X 10mm N52 MagnetsDescription:Shape: BlockMaterial: Nd、 Fe、 BGrade: N52Plating: Ni-Cu-Ni (Nickel)Color: SilverQuantity: 5pcsSize: 50 × 25 ×10mm (L*W*H)Max Temp (degrees C): 80 Note: Be careful Fragile and chip hand、 Placed in a dry place、 stored at room temperature!This is a seriously powerful magnet and it is totally unsuitable for children!Package Included:5 × Block Magnet