Set of 30 magnets 1/2" OD x 1/8" ID x 1/8" thick (12.7 mm x 3.2 mm x 3.2 mm) Material: Neodymium (NdFeB) Grade: N48 Coating: Nickel (Ni) Magnetization: Axial Pull Force: 4.59 pounds SKU# M121818R OD = Outder Diameter ID = Inner Diameter
