Permanent round magnet couplings are made to convey the torque via magnetic forces. The torque is moved between external and internal rotors. They are functional as sealing elements and offer a hermetic separation of drive and driven side. Utilization of these couplings prevent the serious leakage. Permanent round magnet couplings can deal with critical liquids such as aggressive acids others. The said products make use of the permanent magnets for an easy transferal of torque. There are many significant advantages of the systems. Also, these can do away with reliability and maintenance issues.