Product Description:Name: Round NdFeB Powerful MagnetsMaterial: NdFeBSize:25x2mm 25x3mm 25x5mm 25x10mm 25x15mm(diameter*thickness)Standard tolerance: ±0.3mmBrand: N35Magnetizing direction: thickness magnetizing (NS poles are distributed on the thickness)Working temperature:Maximum 80℃(Never demagnetizes at room temperature)Features: hard and brittle, fragile (do not hit, do not fall)Cross layer process: nickel copper nickel (three-layer electroplating, anti-rust and anti-corrosion)Note: Because the magnetic force is too strong to avoid pinching your fingers; the strong magnet is fragile, please pay attention to use it, and it is forbidden to use it alone by people under 14 years old.Package Include:According to your choice