Set of 1 magnet 2" OD x 1" ID x 1" thick (50.8 mm x 25.4 mm x 25.4 mm) Material: Neodymium (NdFeB) Grade: N48 Coating: Nickel (Ni) Magnetization: Axial Pull Force: 97 pounds SKU# M211R OD = Outer Diameter ID = Inner Diameter