Grinding media are spherical or cylindrical objects that roll inside a ball mill. MITR grinding balls refer to the grinding balls used in conjunction with laboratory ball mill instruments, placed inside grinding jars. These balls come in various materials and sizes, including stainless steel, agate, zirconia, nylon, and polytetrafluoroethylene (PTFE). Depending on the characteristics of the material to be ground, multiple grinding ball solutions are provided.