The "PTFE" Komet™ Spinbar® Magnetic Stirring Bar is made from a high-energetic magnetic material. That, combined with its octagonal shape, produce exceptional power although its length is only 50mm (1.969" with a 21mm (.827") diameter. The Samarium-Cobalt magnet is encapsulated in "PTFE". Its eight edges generate strong turbulence so liquids are thoroughly mixed and its stability is not impaired in vessels with curved bottoms. In addition, the risk of demagnetization caused by external magnetic fields is completely eliminated. Komet™ transmits torque loads 2 to 3 times larger than those of conventional stirring bars of this length significantly improving efficiency.