Neodymium parallelepiped magnets, or blocks like other neodymium magnets, are made of a special neodymium-iron-boron alloy, NdFeB, which allows them to have a pulling capacity of up to 500 kg. In our store you can find parallel magnets from 1 to 40mm thick, which makes them quite useful in any application as well as sought after. Blocks like most neodymium magnets have a protective nickel coating, allowing them to retain their strong forces unchanged over time and protecting them from external conditions and rust. some even have a gold-plated coating, making them particularly attractive.