Material: this magnet is made of rare earth magnetic material, also called NdFeB magnets, or neo magnets, super powerful magnets. Neodymium Block 6"L x .4"W x .2"H Ni-Cu-Ni triple coating
Warranty
This magnet includes a 10-year warranty for its magnetic strength, provided it is used under normal conditions. Usage in environments with elevated temperatures, significant vibration, or intense opposing magnetic fields will render this warranty null and void. It is also not suitable for use outdoors or in areas with high humidity or salt content, unless additional protective insulation measures are implemented.