They are powerful neodymium magnets capable of supporting clamping forces of up to 200kg. In Imagnetshop you can find different types of magnetic blocks with a variety of heights.
They are magnets of not very large sizes but with high forces. The clamping forces can reach up to 200kg. Although there are also smaller blocks with smaller clamping forces and adjusted to their size. Neodymium magnetic blocks can withstand temperatures of 80 to 150º C.
In general, the magnetic blocks are composed of north and south pole, on the largest surfaces.