Product specifications Model: QM-40x40x20-N EAN: 4250538408144 Magnet model: Cuboid/Cube Material: Neodym Coating: Nickel (Ni-Cu-Ni) Magnetisation grade: N40 Maximum temperature: 80 °C Magnetisation direction: axial Adhesion: 60 kg / 588.3 N Total weight: 243.2 g Volume: 32000 mm⊃3; Total width B: 40 mm Total height H: 20 mm Total length L: 40 mm Tolerance: ±0.1 mm Real size : 37*37*18 mm