D 9 x 3 mm
Material NdFeB Neodymium Shape Disc Size 9mm diameter x 3mm thickness   /- 0.1mm Grade N35 Operating Temperature ≤80℃ /176F Plating Triple plated (Nickel-Copper-Nickel) Magnetic Face Axially Magnetised Quantity 25-1000 Vertical Pull Force 1.4 kg against minimum 5mm steel plate