Material NdFeB Neodymium Shape Disc Size 5 mm diameter x 3 mm thickness /- 0.1mm Grade N52 Operating Temperature ≤80℃ /176F Plating Triple plated (Nickel-Copper-Nickel) Magnetic Face Axially Magnetised Quantity 100-1000 Vertical Pull Force 0.8 kg against minimum 5mm steel plate