18mm x 2mm Neodymium Disc Strong Magnet (2 Piece)

Specifications: Shape: Disc/Circular Dimensions: 18mm diameter x 2mm thickness Plating /Coating: Ni-Cu-Ni (Nickel) Tolerance: /- 0.1 Material: Neodymium Magnets (NdFeB) Magnetization Direction: Diameter Max Operating Temp: 176ºF (80ºC) Ages:7 ages, both for kids and adults